SciELO - Scientific Electronic Library Online

vol.21 issue1Adaptabilidad y estabilidad de 20 variedades de maíz, Panamá author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand




Related links

  • Have no similar articlesSimilars in SciELO


Agronomía Mesoamericana

On-line version ISSN 2215-3608Print version ISSN 1659-1321


ALCALA-SALINAS, Leticia et al. Introgresión del tamaño de la gluma y la cobertura del grano en poblaciones de sorgo . Agron. Mesoam [online]. 2010, vol.21, n.1, pp.1-10. ISSN 2215-3608.

Introgression of glum size and grain cover into sorghum populations. The objective of the study was to determine if the introgression of exotic sorghum lines increases the variability in the size of the glum and in the percent of uncovered grains. The sorghum population NESC7 (P1) was formed during four agricultural cycles (2005-2007) with an introgression cycle, and beginning on the fifth agricultural cycle (2008), the genetic variability for these traits was estimated in the 120 half-silb and 110 selfsib families. The methodology of incomplete block design was used at two locations, the Faculty of Agronomy at the University of Nuevo Leon (FAUANL) in Marín Nuevo Leon and INIFAP in Río Bravo, Tamaulipas. The introgression of exotic lines with smaller glum size and reduced grain cover into the population NESC7 (P1) reduced the size of the (13%), increased the percentage of uncovered grain (28%), and increased the proportion of both characteristics in the additive variance (5% and 1%), the heritability in a narrow sense of 22 % and 1% and higher response to selection (4% y 0.3%).

Keywords : Sorghum breeding; additive variance; narrow-sense heritability.

        · abstract in Spanish     · text in Spanish     · Spanish ( pdf )


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License