<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>1659-1321</journal-id>
<journal-title><![CDATA[Agronomía Mesoamericana]]></journal-title>
<abbrev-journal-title><![CDATA[Agron. Mesoam]]></abbrev-journal-title>
<issn>1659-1321</issn>
<publisher>
<publisher-name><![CDATA[Universidad de Costa Rica]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1659-13212021000200399</article-id>
<article-id pub-id-type="doi">10.15517/am.v32i2.43281</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[High population density in arracacha (Arracacia xanthorrhiza Bancroft) increase radiation interception, yield, and profitability]]></article-title>
<article-title xml:lang="es"><![CDATA[Densidad poblacional alta en arracacha (Arracacia xanthorrhiza Bancroft) aumenta la intercepción de la radiación, el rendimiento y la rentabilidad]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Quevedo-Amay]]></surname>
<given-names><![CDATA[Yeison Mauricio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Villamil-Carvajal]]></surname>
<given-names><![CDATA[Jorge Enrique]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Garnica-Montaña]]></surname>
<given-names><![CDATA[Johanna Paola]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Montenegro-Ramos]]></surname>
<given-names><![CDATA[Omar]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Barragán-Quijano]]></surname>
<given-names><![CDATA[Eduardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Corporacion Colombiana de Investigacion Agropecuaria (AGROSAVIA)  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Corporacion Colombiana de Investigacion Agropecuaria (AGROSAVIA)  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Corporacion Colombiana de Investigacion Agropecuaria (AGROSAVIA)  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Corporacion Colombiana de Investigacion Agropecuaria (AGROSAVIA)  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Corporacion Colombiana de Investigacion Agropecuaria (AGROSAVIA)  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>08</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>08</month>
<year>2021</year>
</pub-date>
<volume>32</volume>
<numero>2</numero>
<fpage>399</fpage>
<lpage>421</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_arttext&amp;pid=S1659-13212021000200399&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_abstract&amp;pid=S1659-13212021000200399&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_pdf&amp;pid=S1659-13212021000200399&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Introduction. Arracacha (Arracacia xanthorrhiza Bancroft) a promising crop due to its nutritional and gastronomic relevance. Population density is an agronomic practice that increases water and radiation use efficiencies, maximizes the yield, and crop profitability. However, the selection of the optimal population density based on physiological, agronomic, and economic criteria for arracacha has not been studied. Objective. To describe the effect of different population densities on the physiology, yield, and profitability of arracacha. Materials and methods. The experiment was conducted in Cajamarca, Colombia in 2019. There, the soil water potential, relative chlorophyll content, photosynthesis, stomatal conductance, water use efficiency, leaf temperature depression, photosynthetic reflectance index, leaf area index, the fraction of light interception, light extinction coefficient, cracking index, yield, and profitability were evaluated. Results. The results showed that high population densities did not generate water deficit because there were no significant differences for the soil water potential, leaf temperature depression, and photosynthetic reflectance index. Furthermore, no nutritional deficiencies were evidenced because the relative chlorophyll content (&lt;32 SPAD) was higher at the critical level. Due to this, no limitations were observed in leaf gas exchange processes. However, the densities of 25,000 and 30,000 plants ha-1 showed a higher fraction of light interception due to the increase in the leaf area index; this allowed to obtain a higher yield at these densities. Conclusion. The maximum yield (41.96 t ha-1) and profitability (US$ 15,333.06 ha-1) were reached with a population density of 22,222 plants ha-1.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Introducción. La arracacha (Arracacia xanthorrhiza Bancroft) es un cultivo promisorio por su relevancia nutricional y gastronómica. La densidad poblacional es una práctica agronómica que aumenta la eficiencia del uso del agua y la radiación, maximiza el rendimiento y la rentabilidad de los cultivos. Sin embargo, no se ha estudiado para la arracacha la selección de la densidad poblacional óptima basada en criterios fisiológicos, agronómicos y económicos. Objetivo. Describir el efecto de diferentes densidades poblacionales sobre la fisiología, el rendimiento y la rentabilidad de la arracacha. Materiales y métodos. El experimento se realizó en Cajamarca-Colombia durante el 2019. Allí se evaluó el potencial hídrico del suelo, y en arracacha el contenido relativo de clorofila, la fotosíntesis, la conductancia estomática, la eficiencia en el uso del agua, la depresión de la temperatura de la hoja, el índice de reflectancia fotosintética, el índice de área foliar, la fracción de intercepción de luz, el coeficiente de extinción de luz, el índice de agrietamiento, el rendimiento y la rentabilidad. Resultados. Los resultados mostraron que las altas densidades poblacionales no generaron déficit hídrico porque no hubo diferencias significativas en el potencial hídrico del suelo, la depresión de la temperatura foliar y el índice de reflectancia fotosintética. Además, no se evidenciaron deficiencias nutricionales porque el contenido relativo de clorofila (&lt;32 SPAD) fue mayor al nivel crítico. Debido a esto, no se observaron limitaciones en los procesos de intercambio de gases. Sin embargo, las densidades de 25 000 y 30 000 plantas ha-1 mostraron una mayor fracción de intercepción de luz debido al aumento del índice de área foliar; esto permitió obtener un mayor rendimiento a estas densidades. Conclusión. El máximo rendimiento (41,96 t ha-1) y rentabilidad (US$ 15 333,06 ha-1), se alcanzaron con una densidad poblacional de 22 222 plantas ha-1.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[plant density]]></kwd>
<kwd lng="en"><![CDATA[leaf area index]]></kwd>
<kwd lng="en"><![CDATA[planting systems]]></kwd>
<kwd lng="en"><![CDATA[intraspecific competition]]></kwd>
<kwd lng="en"><![CDATA[optimization methods]]></kwd>
<kwd lng="es"><![CDATA[densidad de plantas]]></kwd>
<kwd lng="es"><![CDATA[índice de área foliar]]></kwd>
<kwd lng="es"><![CDATA[sistemas de siembra]]></kwd>
<kwd lng="es"><![CDATA[competencia intraespecífica]]></kwd>
<kwd lng="es"><![CDATA[optimización de métodos]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Alvarado]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Ochoa]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Tecnologías locales de producción de arracacha (Arracacia xanthorrhiza Bancroft) en el municipio de Boyacá, departamento de Boyacá]]></article-title>
<source><![CDATA[Actualidad &amp; Divulgación Científica]]></source>
<year>2010</year>
<volume>13</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>125-33</page-range></nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Al-Naggar]]></surname>
<given-names><![CDATA[A. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Shabana]]></surname>
<given-names><![CDATA[R. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Atta]]></surname>
<given-names><![CDATA[M. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Al-Khalil]]></surname>
<given-names><![CDATA[T. H.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Maize response to elevated plant density combined with lowered N-fertilizer rate is genotype-dependent]]></article-title>
<source><![CDATA[The Crop Journal]]></source>
<year>2015</year>
<volume>3</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>96-109</page-range></nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bänziger]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Edmeades]]></surname>
<given-names><![CDATA[G. O.]]></given-names>
</name>
<name>
<surname><![CDATA[Lafitte]]></surname>
<given-names><![CDATA[H. R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Selection for drought tolerance increases maize yields across a range of nitrogen levels]]></article-title>
<source><![CDATA[Crop Science]]></source>
<year>1999</year>
<volume>39</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>1035-40</page-range></nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bermúdez-Florez]]></surname>
<given-names><![CDATA[L. N.]]></given-names>
</name>
<name>
<surname><![CDATA[Cartagena-Valenzuela]]></surname>
<given-names><![CDATA[J. R.]]></given-names>
</name>
<name>
<surname><![CDATA[Ramírez-Builes]]></surname>
<given-names><![CDATA[V.H.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Soil humidity and evapotranspiration under three coffee (Coffea arabica L.) planting densities at Naranjal experimental station (Chinchiná, Caldas, Colombia)]]></article-title>
<source><![CDATA[Acta Agronómica]]></source>
<year>2018</year>
<volume>67</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>402-13</page-range></nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Biju]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Fuentes]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Gupta]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The use of infrared thermal imaging as a non-destructive screening tool for identifying drought-tolerant lentil genotypes]]></article-title>
<source><![CDATA[Plant Physiology and Biochemistry]]></source>
<year>2018</year>
<volume>127</volume>
<page-range>11-24</page-range></nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bréda]]></surname>
<given-names><![CDATA[N. J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Leaf area index]]></article-title>
<source><![CDATA[Encyclopedia of Ecology]]></source>
<year>2008</year>
<page-range>2148-54</page-range><publisher-name><![CDATA[Academic Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Castro]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Sanchez-Azofeifa]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Testing of automated photochemical reflectance index sensors as proxy measurements of light use efficiency in an aspen forest]]></article-title>
<source><![CDATA[Sensors]]></source>
<year>2018</year>
<volume>18</volume>
<numero>10</numero>
<issue>10</issue>
</nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Chaali]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[Ouazaa]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Jaramillo-Barrios]]></surname>
<given-names><![CDATA[C. I.]]></given-names>
</name>
<name>
<surname><![CDATA[Araujo Carrillo]]></surname>
<given-names><![CDATA[G. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Ávila Pedraza]]></surname>
<given-names><![CDATA[E. Á.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Edaphoclimatic characterization and crop water requirement of Arracacha (Arracacia xanthorrhiza Bancroft) roots in upland production areas]]></article-title>
<source><![CDATA[Scientia Horticulturae]]></source>
<year>2020</year>
<volume>272</volume>
</nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Chastain]]></surname>
<given-names><![CDATA[D. R.]]></given-names>
</name>
<name>
<surname><![CDATA[Snider]]></surname>
<given-names><![CDATA[J. L.]]></given-names>
</name>
<name>
<surname><![CDATA[Choinski]]></surname>
<given-names><![CDATA[J. S.]]></given-names>
</name>
<name>
<surname><![CDATA[Collins]]></surname>
<given-names><![CDATA[G. D.]]></given-names>
</name>
<name>
<surname><![CDATA[Perry]]></surname>
<given-names><![CDATA[C.D.]]></given-names>
</name>
<name>
<surname><![CDATA[Thimoty]]></surname>
<given-names><![CDATA[J.W.]]></given-names>
</name>
<name>
<surname><![CDATA[Ronald]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Byrd]]></surname>
<given-names><![CDATA[S.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Porter]]></surname>
<given-names><![CDATA[W.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Leaf ontogeny strongly influences photosynthetic tolerance to drought and high temperature in Gossypium hirsutum]]></article-title>
<source><![CDATA[Journal of Plant Physiology]]></source>
<year>2016</year>
<volume>199</volume>
<page-range>18-28</page-range></nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="">
<collab>Departamento Administrativo Nacional de Estadística</collab>
<source><![CDATA[Sistema de información de precios SIPSA, 2018-2019]]></source>
<year>2020</year>
</nlm-citation>
</ref>
<ref id="B11">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Drake]]></surname>
<given-names><![CDATA[J. E.]]></given-names>
</name>
<name>
<surname><![CDATA[Power]]></surname>
<given-names><![CDATA[S. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Duursma]]></surname>
<given-names><![CDATA[R. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Medlyn]]></surname>
<given-names><![CDATA[B. E.]]></given-names>
</name>
<name>
<surname><![CDATA[Aspinwall]]></surname>
<given-names><![CDATA[M. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Choat]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Creek]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Eamus]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Maier]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Pfautsch]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Smith]]></surname>
<given-names><![CDATA[R.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Tjoelker]]></surname>
<given-names><![CDATA[D.T.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Stomatal and non-stomatal limitations of photosynthesis for four tree species under drought: A comparison of model formulations]]></article-title>
<source><![CDATA[Agricultural and Forest Meteorology]]></source>
<year>2017</year>
<volume>247</volume>
<page-range>454-66</page-range></nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Doo]]></surname>
<given-names><![CDATA[H. S.]]></given-names>
</name>
<name>
<surname><![CDATA[Ryu]]></surname>
<given-names><![CDATA[J. H.]]></given-names>
</name>
<name>
<surname><![CDATA[Lee]]></surname>
<given-names><![CDATA[K. S.]]></given-names>
</name>
<name>
<surname><![CDATA[Choi]]></surname>
<given-names><![CDATA[S. Y.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Effect of plant density on growth responses and yield in yacon]]></article-title>
<source><![CDATA[Korean Journal of Crop Science]]></source>
<year>2001</year>
<volume>46</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>407-10</page-range></nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Fang]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Liang]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Leaf area index models]]></article-title>
<source><![CDATA[Encyclopedia of Ecology]]></source>
<year>2008</year>
<publisher-name><![CDATA[Elsevier B. V.]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B14">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Flénet]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Kiniry]]></surname>
<given-names><![CDATA[J. R.]]></given-names>
</name>
<name>
<surname><![CDATA[Board]]></surname>
<given-names><![CDATA[J. E.]]></given-names>
</name>
<name>
<surname><![CDATA[Westgate]]></surname>
<given-names><![CDATA[M. E.]]></given-names>
</name>
<name>
<surname><![CDATA[Reicosky]]></surname>
<given-names><![CDATA[D. C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Row spacing effects on light extinction coefficients of corn, sorghum, soybean, and sunflower]]></article-title>
<source><![CDATA[Agronomy Journal]]></source>
<year>1996</year>
<volume>88</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>185-90</page-range></nlm-citation>
</ref>
<ref id="B15">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Garbulsky]]></surname>
<given-names><![CDATA[M. F.]]></given-names>
</name>
<name>
<surname><![CDATA[Peñuelas]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Papale]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Filella]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Remote estimation of carbon dioxide uptake by a Mediterranean forest]]></article-title>
<source><![CDATA[Global Change Biology]]></source>
<year>2008</year>
<volume>14</volume>
<numero>12</numero>
<issue>12</issue>
<page-range>2860-7</page-range></nlm-citation>
</ref>
<ref id="B16">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[García]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Moreno]]></surname>
<given-names><![CDATA[L. P.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Respuestas fisiológicas de Theobroma cacao L. en etapa de vivero a la disponibilidad de agua en el suelo]]></article-title>
<source><![CDATA[Acta Agronómica]]></source>
<year>2016</year>
<volume>65</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>44-50</page-range></nlm-citation>
</ref>
<ref id="B17">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Garnica-Montaña]]></surname>
<given-names><![CDATA[J. P.]]></given-names>
</name>
<name>
<surname><![CDATA[Rodriguez]]></surname>
<given-names><![CDATA[O. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Jaramillo-Barrios]]></surname>
<given-names><![CDATA[C. I.]]></given-names>
</name>
<name>
<surname><![CDATA[Vallejo-Cabrera]]></surname>
<given-names><![CDATA[F. A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Diversidad morfológica y caracteres de selección del germoplasma de arracacha (Arracacia xanthorriza Bancr.) en Colombia]]></article-title>
<source><![CDATA[Ciencia y Agricultura]]></source>
<year>2020</year>
<volume>17</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>49-62</page-range></nlm-citation>
</ref>
<ref id="B18">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Graciano]]></surname>
<given-names><![CDATA[J. D.]]></given-names>
</name>
<name>
<surname><![CDATA[Zárate]]></surname>
<given-names><![CDATA[N. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Vieira]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[C.]]></surname>
<given-names><![CDATA[Rosa]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Sediyama. (2007). Espaçamento entre fileiras e entre plantas na produção da mandioquinha-salsa &#8216;Branca&#8217;]]></article-title>
<source><![CDATA[Ciência e Agrotecnologia]]></source>
<year>2007</year>
<volume>31</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>1688-95</page-range></nlm-citation>
</ref>
<ref id="B19">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gutiérrez-Malaxechebarría]]></surname>
<given-names><![CDATA[Á. M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Nueva aparcería en la producción de arracacha (Arracacia xanthorrhiza) en Cajamarca (Colombia)]]></article-title>
<source><![CDATA[Cuadernos de Desarrollo Rural]]></source>
<year>2011</year>
<volume>8</volume>
<numero>67</numero>
<issue>67</issue>
<page-range>205-28</page-range></nlm-citation>
</ref>
<ref id="B20">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hanlon]]></surname>
<given-names><![CDATA[E. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Hochmuth]]></surname>
<given-names><![CDATA[G. J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Carrot]]></article-title>
<source><![CDATA[Reference sufficiency ranges for plant analysis in the southern region of the United States]]></source>
<year>2009</year>
<page-range>63-5</page-range><publisher-name><![CDATA[Southern Region Agricultural Experiment Station.]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B21">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hartz]]></surname>
<given-names><![CDATA[T. K.]]></given-names>
</name>
<name>
<surname><![CDATA[Johnstone]]></surname>
<given-names><![CDATA[P. R.]]></given-names>
</name>
<name>
<surname><![CDATA[Nunez]]></surname>
<given-names><![CDATA[J. J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Production environment nitrogen fertility affect carrot cracking]]></article-title>
<source><![CDATA[HortScience]]></source>
<year>2005</year>
<volume>40</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>611-5</page-range></nlm-citation>
</ref>
<ref id="B22">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hashemi]]></surname>
<given-names><![CDATA[A. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Herbert]]></surname>
<given-names><![CDATA[S. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Putnam]]></surname>
<given-names><![CDATA[D. H.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Yield response of corn to crowding stress]]></article-title>
<source><![CDATA[Agronomy Journal]]></source>
<year>2005</year>
<volume>97</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>839-46</page-range></nlm-citation>
</ref>
<ref id="B23">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hatfield]]></surname>
<given-names><![CDATA[J. L.]]></given-names>
</name>
<name>
<surname><![CDATA[Dold]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Water-use efficiency: advances and challenges in a changing climate]]></article-title>
<source><![CDATA[Frontiers in Plant Science]]></source>
<year>2019</year>
<volume>10</volume>
</nlm-citation>
</ref>
<ref id="B24">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hermann]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Arracacha (Arracaccia xanthorrhiza Bancroft)]]></article-title>
<source><![CDATA[Andean Roots and Tubers: Ahipa, arracacha, maca and yacon]]></source>
<year>1997</year>
<page-range>75-172</page-range><publisher-name><![CDATA[Plant Genetics Resources Institute.]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B25">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Honda]]></surname>
<given-names><![CDATA[E. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Pilon]]></surname>
<given-names><![CDATA[N. A. L.]]></given-names>
</name>
<name>
<surname><![CDATA[Durigan]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The relationship between plant density and survival to water stress in seedlings of a legume tree]]></article-title>
<source><![CDATA[Acta Botanica Brasilica]]></source>
<year>2019</year>
<volume>33</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>602-6</page-range></nlm-citation>
</ref>
<ref id="B26">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hou]]></surname>
<given-names><![CDATA[W.]]></given-names>
</name>
<name>
<surname><![CDATA[Rizwan]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Zhang]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Lu]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Ren]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Cong]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Li]]></surname>
<given-names><![CDATA[X.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Nitrogen rate and plant density interaction enhances radiation interception, yield and nitrogen use efficiency of mechanically transplanted rice]]></article-title>
<source><![CDATA[Agriculture, Ecosystems and Environment]]></source>
<year>2019</year>
<volume>269</volume>
<page-range>183-92</page-range></nlm-citation>
</ref>
<ref id="B27">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Imai]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Suzuki]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Mae]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Makino]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Changes in the synthesis of Rubisco in rice leaves in relation to senescence and N influx]]></article-title>
<source><![CDATA[Annals of Botany]]></source>
<year>2008</year>
<volume>101</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>135-44</page-range></nlm-citation>
</ref>
<ref id="B28">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Jaimez]]></surname>
<given-names><![CDATA[R. E.]]></given-names>
</name>
<name>
<surname><![CDATA[Santos]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[Añez]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Vásquez]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Espinoza]]></surname>
<given-names><![CDATA[W.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Photosynthesis of field-grown Arracacha (Arracacia xanthorriza Bancroft) cultivars in relation to root-yield]]></article-title>
<source><![CDATA[Scientia Horticulturae]]></source>
<year>2008</year>
</nlm-citation>
</ref>
<ref id="B29">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Jaramillo-Barrios]]></surname>
<given-names><![CDATA[C. I.]]></given-names>
</name>
<name>
<surname><![CDATA[Barragán-Quijano]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Monje-Andrade]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Populations of Spodoptera frugiperda (Lepidoptera: Noctuidae) cause significant damage to genetically modified corn crops]]></article-title>
<source><![CDATA[Revista Facultad Nacional de Agronomía Medellín]]></source>
<year>2019</year>
<volume>72</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>8953-62</page-range></nlm-citation>
</ref>
<ref id="B30">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kohzuma]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Hikosaka]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Physiological validation of photochemical reflectance index (PRI) as a photosynthetic parameter using Arabidopsis thaliana mutants]]></article-title>
<source><![CDATA[Biochemical and Biophysical Research Communications]]></source>
<year>2018</year>
<volume>498</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>52-7</page-range></nlm-citation>
</ref>
<ref id="B31">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Potential of Photochemical Reflectance Index for indicating photochemistry and light use efficiency in leaves of european beech and Norway spruce trees]]></article-title>
<source><![CDATA[Remote Sensing]]></source>
<year>2018</year>
<volume>10</volume>
<numero>8</numero>
<issue>8</issue>
</nlm-citation>
</ref>
<ref id="B32">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kaur]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Asthir]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Bains]]></surname>
<given-names><![CDATA[N. S.]]></given-names>
</name>
<name>
<surname><![CDATA[Farooq]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Nitrogen nutrition, its assimilation and remobilization in diverse wheat genotypes]]></article-title>
<source><![CDATA[International Journal of Agriculture and Biology]]></source>
<year>2015</year>
<volume>17</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>1814-9596</page-range></nlm-citation>
</ref>
<ref id="B33">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Liu]]></surname>
<given-names><![CDATA[Q.]]></given-names>
</name>
<name>
<surname><![CDATA[Zhou]]></surname>
<given-names><![CDATA[X.]]></given-names>
</name>
<name>
<surname><![CDATA[Li]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Xin]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Effects of seedling age and cultivation density on agronomic characteristics and grain yield of mechanically transplanted rice]]></article-title>
<source><![CDATA[Scientific Reports]]></source>
<year>2017</year>
<volume>7</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>14072</page-range></nlm-citation>
</ref>
<ref id="B34">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Luo]]></surname>
<given-names><![CDATA[L. P.]]></given-names>
</name>
<name>
<surname><![CDATA[Yu]]></surname>
<given-names><![CDATA[Z. W.]]></given-names>
</name>
<name>
<surname><![CDATA[Wang]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Zhang]]></surname>
<given-names><![CDATA[Y. L.]]></given-names>
</name>
<name>
<surname><![CDATA[Shi]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Effects of plant density and soil moisture on photosynthetic characteristics of flag leaf and accumulation and distribution of dry matter in wheat]]></article-title>
<source><![CDATA[Acta Agronomica Sinica]]></source>
<year>2011</year>
<volume>37</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>1049-59</page-range></nlm-citation>
</ref>
<ref id="B35">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Magolbo]]></surname>
<given-names><![CDATA[L. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Carmo]]></surname>
<given-names><![CDATA[E. L.]]></given-names>
</name>
<name>
<surname><![CDATA[Garcia]]></surname>
<given-names><![CDATA[E. L.]]></given-names>
</name>
<name>
<surname><![CDATA[Fernandes]]></surname>
<given-names><![CDATA[A. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Leonel]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Dry matter accumulation and mineral nutrition of arracacha in response to nitrogen fertilization]]></article-title>
<source><![CDATA[Pesquisa Agropecuária Brasileira]]></source>
<year>2015</year>
<volume>50</volume>
<numero>8</numero>
<issue>8</issue>
<page-range>669-80</page-range></nlm-citation>
</ref>
<ref id="B36">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Morillo]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Madeira]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[Jaimez]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Arracacha]]></article-title>
<source><![CDATA[Carrots and related vegetable Umbelliferae]]></source>
<year>2020</year>
<edition>2</edition>
<page-range>346</page-range><publisher-name><![CDATA[CAB International]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B37">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Madeira]]></surname>
<given-names><![CDATA[N. R.]]></given-names>
</name>
<name>
<surname><![CDATA[Ferreira de Carvalho]]></surname>
<given-names><![CDATA[A. D.]]></given-names>
</name>
<name>
<surname><![CDATA[Silva]]></surname>
<given-names><![CDATA[G. O.]]></given-names>
</name>
<name>
<surname><![CDATA[Borges Pinheiro]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Borges Pereira]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Michereff Filho]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Pires Feldberg]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[Moreira]]></surname>
<given-names><![CDATA[S. O.]]></given-names>
</name>
<name>
<surname><![CDATA[Ribeiro Silveira]]></surname>
<given-names><![CDATA[G. S.]]></given-names>
</name>
<name>
<surname><![CDATA[Cássia]]></surname>
<given-names><![CDATA[R. M.]]></given-names>
</name>
</person-group>
<source><![CDATA[Proposição de um sistema de produção de mudas de mandioquinha-salsa]]></source>
<year>2017</year>
<publisher-name><![CDATA[Brazilian Agricultural Research Corporation.]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B38">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Olechowicz]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Chomontowski]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Olechowicz]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Pietkiewicz]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Jajoo]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Kalaji]]></surname>
<given-names><![CDATA[M. H.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Impact of intraspecific competition on photosynthetic apparatus efficiency in potato (Solanum tuberosum) plants]]></article-title>
<source><![CDATA[Photosynthetica]]></source>
<year>2018</year>
<volume>56</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>971-5</page-range></nlm-citation>
</ref>
<ref id="B39">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Padilla]]></surname>
<given-names><![CDATA[F. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Gallardo]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Peña-Fleitas]]></surname>
<given-names><![CDATA[M. T.]]></given-names>
</name>
<name>
<surname><![CDATA[De Souza]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Thompson]]></surname>
<given-names><![CDATA[R.B.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Proximal optical sensors for nitrogen management of vegetable crops: A review]]></article-title>
<source><![CDATA[Sensors]]></source>
<year>2018</year>
<volume>18</volume>
<numero>7</numero>
<issue>7</issue>
<page-range>2083</page-range></nlm-citation>
</ref>
<ref id="B40">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Page]]></surname>
<given-names><![CDATA[K. L.]]></given-names>
</name>
<name>
<surname><![CDATA[Dang]]></surname>
<given-names><![CDATA[Y. P.]]></given-names>
</name>
<name>
<surname><![CDATA[Dalal]]></surname>
<given-names><![CDATA[R.C.]]></given-names>
</name>
<name>
<surname><![CDATA[Reeves]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Thomas]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Wang]]></surname>
<given-names><![CDATA[W.]]></given-names>
</name>
<name>
<surname><![CDATA[Thompson]]></surname>
<given-names><![CDATA[J.P.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Changes in soil water storage with no-tillage and crop residue retention on a Vertisol: Impact on productivity and profitability over a 50 year period]]></article-title>
<source><![CDATA[Soil Tillage Research]]></source>
<year>2019</year>
<volume>194</volume>
</nlm-citation>
</ref>
<ref id="B41">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Pinto-Acero]]></surname>
<given-names><![CDATA[Y. L.]]></given-names>
</name>
<name>
<surname><![CDATA[Alvarado-Gaona]]></surname>
<given-names><![CDATA[Á. E.]]></given-names>
</name>
<name>
<surname><![CDATA[Burgos-Ávila]]></surname>
<given-names><![CDATA[Y. E.]]></given-names>
</name>
<name>
<surname><![CDATA[Balaguera-López]]></surname>
<given-names><![CDATA[H. E.]]></given-names>
</name>
<name>
<surname><![CDATA[Ramírez-González]]></surname>
<given-names><![CDATA[S. I.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Characterization of three Arracacia xanthorrhiza Bancroft genotypes using morphological and color parameters]]></article-title>
<source><![CDATA[Revista Colombiana de Ciencias Hortícolas]]></source>
<year>2019</year>
<volume>13</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>426-34</page-range></nlm-citation>
</ref>
<ref id="B42">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Quevedo]]></surname>
<given-names><![CDATA[Y. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Beltrán]]></surname>
<given-names><![CDATA[J. I.]]></given-names>
</name>
<name>
<surname><![CDATA[Barragán-Quijano]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Effect of sowing density on yield and profitability of a hybrid corn under tropical conditions]]></article-title>
<source><![CDATA[Agronomía Colombiana]]></source>
<year>2018</year>
<volume>36</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>248-56</page-range></nlm-citation>
</ref>
<ref id="B43">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Raines]]></surname>
<given-names><![CDATA[C. A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Increasing photosynthetic carbon assimilation in C3 plants to improve crop yield: current and future strategies]]></article-title>
<source><![CDATA[Plant Physiology]]></source>
<year>2011</year>
<volume>115</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>36-42</page-range></nlm-citation>
</ref>
<ref id="B44">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Richards]]></surname>
<given-names><![CDATA[R. A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Selectable traits to increase crop photosynthesis and yield of grain crops]]></article-title>
<source><![CDATA[Journal of Experimental Botany]]></source>
<year>2000</year>
<volume>51</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>447-58</page-range></nlm-citation>
</ref>
<ref id="B45">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Richmond-Zumbado]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Méndez-Soto]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Rendimiento de 12 híbridos comerciales de zanahoria (Daucus carota L.) en el campo y en la planta de empaque]]></article-title>
<source><![CDATA[Agronomía Mesoamericana]]></source>
<year>2010</year>
<volume>21</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>167-76</page-range></nlm-citation>
</ref>
<ref id="B46">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rodríguez]]></surname>
<given-names><![CDATA[O. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Garnica]]></surname>
<given-names><![CDATA[J. P.]]></given-names>
</name>
<name>
<surname><![CDATA[Villamil]]></surname>
<given-names><![CDATA[J. E.]]></given-names>
</name>
<name>
<surname><![CDATA[Atencio]]></surname>
<given-names><![CDATA[L. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Martínez]]></surname>
<given-names><![CDATA[R.A.]]></given-names>
</name>
</person-group>
<source><![CDATA[Primera variedad de arracacha en Colombia: Amarilla, de alta producción y adaptada a condiciones agroecológicas de la zona Andina]]></source>
<year>2019</year>
<publisher-name><![CDATA[Corporación Colombiana de Investigación Agropecuaria.]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B47">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rosso]]></surname>
<given-names><![CDATA[C. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Medina]]></surname>
<given-names><![CDATA[C. I.]]></given-names>
</name>
<name>
<surname><![CDATA[Lobo]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Morphologic characterization and agronomic evaluation of a Colombian collection of arracacha (Arracacia xanthorrhiza Bancroft)]]></article-title>
<source><![CDATA[Plant Genetic Resources Newsletter]]></source>
<year>2002</year>
<volume>132</volume>
<page-range>22-9</page-range></nlm-citation>
</ref>
<ref id="B48">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sher]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Khan]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Ashraf]]></surname>
<given-names><![CDATA[U.]]></given-names>
</name>
<name>
<surname><![CDATA[Liu]]></surname>
<given-names><![CDATA[H. H.]]></given-names>
</name>
<name>
<surname><![CDATA[Li]]></surname>
<given-names><![CDATA[J. C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Characterization of the effect of increased plant density on canopy morphology and stalk lodging risk]]></article-title>
<source><![CDATA[Frontiers Plant Science]]></source>
<year>2018</year>
<volume>11</volume>
<numero>9</numero>
<issue>9</issue>
</nlm-citation>
</ref>
<ref id="B49">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Shi]]></surname>
<given-names><![CDATA[D. Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Li Y. H.]]></surname>
<given-names><![CDATA[Zhang]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Increased plant density and reduced N rate lead to more grain yield and higher resource utilization in summer maize]]></article-title>
<source><![CDATA[Journal of Integrative Agriculture]]></source>
<year>2016</year>
<volume>15</volume>
<numero>11</numero>
<issue>11</issue>
<page-range>2515-28</page-range></nlm-citation>
</ref>
<ref id="B50">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Silva]]></surname>
<given-names><![CDATA[B. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Silva]]></surname>
<given-names><![CDATA[É. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Oliveira]]></surname>
<given-names><![CDATA[G.C.]]></given-names>
</name>
<name>
<surname><![CDATA[Ferreira]]></surname>
<given-names><![CDATA[M. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Serafim]]></surname>
<given-names><![CDATA[M. E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Plant-available soil water capacity: estimation methods and implications]]></article-title>
<source><![CDATA[Revista Brasilera de Ciência do Solo]]></source>
<year>2014</year>
<volume>38</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>464-75</page-range></nlm-citation>
</ref>
<ref id="B51">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Silva]]></surname>
<given-names><![CDATA[T. S.]]></given-names>
</name>
<name>
<surname><![CDATA[Lima e Silva]]></surname>
<given-names><![CDATA[P. S.]]></given-names>
</name>
<name>
<surname><![CDATA[Braga]]></surname>
<given-names><![CDATA[J. D.]]></given-names>
</name>
<name>
<surname><![CDATA[Da Silveira]]></surname>
<given-names><![CDATA[L. M.]]></given-names>
</name>
<name>
<surname><![CDATA[De Sous]]></surname>
<given-names><![CDATA[P. P.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Planting density and yield of cassava roots]]></article-title>
<source><![CDATA[Revista Ciência Agronômica]]></source>
<year>2013</year>
<volume>44</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>317-24</page-range></nlm-citation>
</ref>
<ref id="B52">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Singh]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Kumar]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Kumar]]></surname>
<given-names><![CDATA[V.]]></given-names>
</name>
<name>
<surname><![CDATA[Solanki]]></surname>
<given-names><![CDATA[I. S.]]></given-names>
</name>
<name>
<surname><![CDATA[McDonalda]]></surname>
<given-names><![CDATA[A. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Kumar]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Pooniaa]]></surname>
<given-names><![CDATA[S. P.]]></given-names>
</name>
<name>
<surname><![CDATA[Kumar]]></surname>
<given-names><![CDATA[V.]]></given-names>
</name>
<name>
<surname><![CDATA[Ajay]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Kumar]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Singh]]></surname>
<given-names><![CDATA[D. K.]]></given-names>
</name>
<name>
<surname><![CDATA[Balwinder-Singha]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[S.]]></surname>
<given-names><![CDATA[&amp; Malik]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Intercomparison of crop establishment methods for improving yield and profitability in the rice-wheat system of Eastern India]]></article-title>
<source><![CDATA[Field Crops Research]]></source>
<year>2020</year>
<volume>250</volume>
</nlm-citation>
</ref>
<ref id="B53">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Slattery]]></surname>
<given-names><![CDATA[R. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Vanloocke]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Bernacchi]]></surname>
<given-names><![CDATA[C. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Zhu]]></surname>
<given-names><![CDATA[X. G.]]></given-names>
</name>
<name>
<surname><![CDATA[Ort]]></surname>
<given-names><![CDATA[D.R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Photosynthesis, light use efficiency, and yield of reduced-chlorophyll soybean mutants in field conditions]]></article-title>
<source><![CDATA[Frontiers in Plant Science]]></source>
<year>2017</year>
<volume>18</volume>
<numero>8</numero>
<issue>8</issue>
</nlm-citation>
</ref>
<ref id="B54">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Son]]></surname>
<given-names><![CDATA[J. K.]]></given-names>
</name>
<name>
<surname><![CDATA[Shin]]></surname>
<given-names><![CDATA[W. T.]]></given-names>
</name>
<name>
<surname><![CDATA[Cho]]></surname>
<given-names><![CDATA[J. Y.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Laboratory and field assessment of the Decagon 5TE and GS3 sensors for estimating soil water content in saline-alkali reclaimed soils.]]></article-title>
<source><![CDATA[Communications in Soil Science and Plant Analysis]]></source>
<year>2017</year>
<volume>48</volume>
<numero>19</numero>
<issue>19</issue>
<page-range>2268-79</page-range></nlm-citation>
</ref>
<ref id="B55">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Song]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Tariq]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Pan]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Khan]]></surname>
<given-names><![CDATA[S.U.]]></given-names>
</name>
<name>
<surname><![CDATA[Saleh]]></surname>
<given-names><![CDATA[T. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Gong]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Zhang]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Wu]]></surname>
<given-names><![CDATA[X.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[In&#64258;uence of planting distance and density on the yield and photosynthetic traits of sweet potato (Ipomoea balatas L.) under an intercropping system with walnut (Juglans regia) saplings]]></article-title>
<source><![CDATA[Soil Tillage Research]]></source>
<year>2020</year>
<volume>196</volume>
</nlm-citation>
</ref>
<ref id="B56">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sun]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Zhang]]></surname>
<given-names><![CDATA[W.]]></given-names>
</name>
<name>
<surname><![CDATA[Lin]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Liu]]></surname>
<given-names><![CDATA[Z.]]></given-names>
</name>
<name>
<surname><![CDATA[Shen]]></surname>
<given-names><![CDATA[W.]]></given-names>
</name>
<name>
<surname><![CDATA[Zhou]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Rao]]></surname>
<given-names><![CDATA[X.]]></given-names>
</name>
<name>
<surname><![CDATA[Liu]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Cai]]></surname>
<given-names><![CDATA[X.]]></given-names>
</name>
<name>
<surname><![CDATA[He]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Fu]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Soil erosion and water retention varies with plantation type and age]]></article-title>
<source><![CDATA[Forest Ecology Management]]></source>
<year>2018</year>
<volume>422</volume>
<page-range>1-10</page-range></nlm-citation>
</ref>
<ref id="B57">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Testa]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Reyneri]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Blandino]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Maize grain yield enhancement through high plant density cultivation with different inter-row and intra-row spacings]]></article-title>
<source><![CDATA[European Journal of Agronomy]]></source>
<year>2016</year>
<volume>72</volume>
<page-range>28-37</page-range></nlm-citation>
</ref>
<ref id="B58">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Torales-Pacito]]></surname>
<given-names><![CDATA[E. P.]]></given-names>
</name>
<name>
<surname><![CDATA[Zárate]]></surname>
<given-names><![CDATA[N. A. H.]]></given-names>
</name>
<name>
<surname><![CDATA[Vieira]]></surname>
<given-names><![CDATA[M. D. C.]]></given-names>
</name>
<name>
<surname><![CDATA[Menani-Heid]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Bassi-Moreno]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Rotermel-Grando]]></surname>
<given-names><![CDATA[V.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Productivity peruvian carrot in response to plant spacings and average masses of seedlings]]></article-title>
<source><![CDATA[Bioscience Journal]]></source>
<year>2015</year>
<volume>31</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>433-44</page-range></nlm-citation>
</ref>
<ref id="B59">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Vahrmeijer]]></surname>
<given-names><![CDATA[J. T.]]></given-names>
</name>
<name>
<surname><![CDATA[Annandale]]></surname>
<given-names><![CDATA[J. G.]]></given-names>
</name>
<name>
<surname><![CDATA[Steyn]]></surname>
<given-names><![CDATA[J. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Bristow]]></surname>
<given-names><![CDATA[K. L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Model parameters of four important vegetable crops for improved water use and yield estimation]]></article-title>
<source><![CDATA[Water S.A]]></source>
<year>2018</year>
<volume>44</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>528-38</page-range></nlm-citation>
</ref>
<ref id="B60">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Vongcharoen]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Santanoo]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Banterng]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Jogloy]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Vorasoot]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[Theerakulpisut]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Seasonal variation in photosynthesis performance of cassava at two different growth stages under irrigated and rain-fed conditions in a tropical savanna climate]]></article-title>
<source><![CDATA[Photosynthetica]]></source>
<year>2018</year>
<volume>56</volume>
<page-range>1398-413</page-range></nlm-citation>
</ref>
<ref id="B61">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Wang]]></surname>
<given-names><![CDATA[W. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Li]]></surname>
<given-names><![CDATA[Z. L.]]></given-names>
</name>
<name>
<surname><![CDATA[Su]]></surname>
<given-names><![CDATA[H. B.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Comparison of leaf angle distribution functions: Effects on extinction coefficient and fraction of sunlit foliage]]></article-title>
<source><![CDATA[Agricultural and Forest Meteorology]]></source>
<year>2007</year>
<volume>143</volume>
<numero>1&#8211;2</numero>
<issue>1&#8211;2</issue>
<page-range>106-22</page-range></nlm-citation>
</ref>
<ref id="B62">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Westerveld]]></surname>
<given-names><![CDATA[S. M.]]></given-names>
</name>
<name>
<surname><![CDATA[McKeown]]></surname>
<given-names><![CDATA[A. W.]]></given-names>
</name>
<name>
<surname><![CDATA[Scott-Dupree]]></surname>
<given-names><![CDATA[C. D.]]></given-names>
</name>
<name>
<surname><![CDATA[McDonald]]></surname>
<given-names><![CDATA[M. R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Assessment of chlorophyll and nitrate meters as field tissue nitrogen tests for cabbage, onions, and carrots]]></article-title>
<source><![CDATA[Horttechnology]]></source>
<year>2004</year>
<volume>14</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>176-88</page-range></nlm-citation>
</ref>
<ref id="B63">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Yang]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Z.]]></surname>
<given-names><![CDATA[Luo]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Effects of plant density on yield and canopy micro environment in hybrid cotton]]></article-title>
<source><![CDATA[Journal Integrative Agriculture]]></source>
<year>2014</year>
<volume>13</volume>
<numero>10</numero>
<issue>10</issue>
<page-range>2154-63</page-range></nlm-citation>
</ref>
<ref id="B64">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Zarate]]></surname>
<given-names><![CDATA[N. A. H.]]></given-names>
</name>
<name>
<surname><![CDATA[Vieira]]></surname>
<given-names><![CDATA[M. D. C.]]></given-names>
</name>
<name>
<surname><![CDATA[Graciano]]></surname>
<given-names><![CDATA[J. D.]]></given-names>
</name>
<name>
<surname><![CDATA[Gonzales-Figueiredo]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Brandão-Blans]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[Mazaron-Curioni]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Produtividade de mandioquinha-salsa sob diferentes densidades de plantio e tamanho das mudas]]></article-title>
<source><![CDATA[Ciência e Agrotecnologia]]></source>
<year>2009</year>
<volume>33</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>139-43</page-range></nlm-citation>
</ref>
<ref id="B65">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Zarate]]></surname>
<given-names><![CDATA[N. A. H.]]></given-names>
</name>
<name>
<surname><![CDATA[Vieira]]></surname>
<given-names><![CDATA[M. D. C.]]></given-names>
</name>
<name>
<surname><![CDATA[Rech]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Quast]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Pontim]]></surname>
<given-names><![CDATA[B. C.]]></given-names>
</name>
<name>
<surname><![CDATA[Gassi]]></surname>
<given-names><![CDATA[R. P.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Yield and gross income arracacha in monocrop and intercropping with Japanese bunching onion and parsley]]></article-title>
<source><![CDATA[Horticultura Brasileira]]></source>
<year>2008</year>
<volume>26</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>287-91</page-range></nlm-citation>
</ref>
<ref id="B66">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Zhang]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Yu]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Kong]]></surname>
<given-names><![CDATA[X.]]></given-names>
</name>
<name>
<surname><![CDATA[Hou]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Gu]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Liu]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Wang]]></surname>
<given-names><![CDATA[Z.]]></given-names>
</name>
<name>
<surname><![CDATA[Yang]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Progressive integrative crop managements increase grain yield, nitrogen use efficiency and irrigation water productivity in rice]]></article-title>
<source><![CDATA[Field Crops Research]]></source>
<year>2018</year>
<volume>215</volume>
<page-range>1-11</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
