<?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>0379-3982</journal-id>
<journal-title><![CDATA[Revista Tecnología en Marcha]]></journal-title>
<abbrev-journal-title><![CDATA[Tecnología en Marcha]]></abbrev-journal-title>
<issn>0379-3982</issn>
<publisher>
<publisher-name><![CDATA[Instituto Tecnológico de Costa Rica]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0379-39822021000100115</article-id>
<article-id pub-id-type="doi">10.18845/tm.v34i1.5096</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Ajuste de diferentes modelos de crecimiento no lineal al rendimiento de la palma aceitera (Elaeis guineensis) a lo largo del ciclo de vida del cultivo, Costa Rica]]></article-title>
<article-title xml:lang="en"><![CDATA[Fitting different nonlinear growth models to oil palm (Elaeis guineensis) yield along the crop lifecycle, Costa Rica]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Solórzano-Thompson]]></surname>
<given-names><![CDATA[Johanna]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Paniagua-Molina]]></surname>
<given-names><![CDATA[Javier]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Barboza-Navarro]]></surname>
<given-names><![CDATA[David]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Costa Rica Máster en Economía Empresarial Centro de Investigaciones en Economía Agrícola y Desarrollo Agroempresarial]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Costa Rica</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de Costa Rica  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Costa Rica</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad de Costa Rica  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Costa Rica</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2021</year>
</pub-date>
<volume>34</volume>
<numero>1</numero>
<fpage>115</fpage>
<lpage>126</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_arttext&amp;pid=S0379-39822021000100115&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_abstract&amp;pid=S0379-39822021000100115&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_pdf&amp;pid=S0379-39822021000100115&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Esta investigación se enfocó en el cultivo de palma aceitera en la zona sur de Costa Rica, por el alto impacto que genera en el desarrollo económico de agricultores costarricenses. Se ajustó la curva de crecimiento del rendimiento de la palma aceitera a lo largo del ciclo de vida del cultivo y se comparó la eficiencia de pronóstico de ocho modelos de crecimiento no lineal con base en diferentes criterios estadísticos y pruebas de normalidad. Posteriormente, se aplicó el método de transformación Box-Cox para corregir la ausencia de normalidad en los residuos. Los modelos no lineales aplicados fueron adecuados para pronosticar el rendimiento de palma aceitera; el modelo Morgan-Mercer-Flodin produjo las mejores estadísticas de ajuste. Esta investigación constituye un insumo para las prácticas de renovación de plantaciones, así como para la valoración económica de cultivos que se prendan como garantía bancaria]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract This research focused on the oil palm crop in the southern zone of Costa Rica due to the high impact it generates on the economic development of Costa Rican farmers. The oil palm yield growth curve was adjusted along the crop life cycle, and the forecast efficiency of eight nonlinear growth models was compared based on different statistical criteria and normality tests. Then the Box-Cox transformation method was applied to correct the absence of normality. The applied nonlinear models were adequate to forecast oil palm yield, and the Morgan-Mercer-Flodin model produced the best fit statistics. This research constitutes an input for plantation renovation practices, as well as the economic valuation of crops that may be pledged as collaterals.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Transformación de Box-Cox]]></kwd>
<kwd lng="es"><![CDATA[eficiencia del pronóstico]]></kwd>
<kwd lng="es"><![CDATA[regresión no lineal]]></kwd>
<kwd lng="es"><![CDATA[aceite de palma]]></kwd>
<kwd lng="es"><![CDATA[ciclo de vida del cultivo]]></kwd>
<kwd lng="en"><![CDATA[Box-Cox transformation]]></kwd>
<kwd lng="en"><![CDATA[forecast efficiency]]></kwd>
<kwd lng="en"><![CDATA[nonlinear regression]]></kwd>
<kwd lng="en"><![CDATA[palm oil]]></kwd>
<kwd lng="en"><![CDATA[crop life cycle]]></kwd>
</kwd-group>
</article-meta>
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