Variación intra-racial de maíces nativos del altiplano de Puebla, México
Diversity among native maize populations in the highlands of the state of Puebla, Mexico has been studied through the association of those populations with some of the reported maize races; however, population variation within races has been little studied. The aim of the study was to characteriz...
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| Publicado en: | Revista de la Facultad de Ciencias Agrarias |
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| Autores principales: | , , , , |
| Materias: | |
| Acceso en línea: | https://bdigital.uncu.edu.ar/fichas.php?idobjeto=7466 |
| Sumario: | Diversity among native maize populations in the highlands of the state of Puebla,
Mexico has been studied through the association of those populations with some of the
reported maize races; however, population variation within races has been little studied.
The aim of the study was to characterize morphologically populations of native maize
from the highlands of the state of Puebla and to define relationships among and within
races to which they belong. In 2012, 41 native maize populations from the valleys of
Serdan, Libres-Huamantla and Puebla were evaluated; 19 representative-race popula-
tions, two commercial and two experimental populations were included as controls
in the trials. Forty morphological variables were recorded and an analysis of variance
was applied, as well as multivariate techniques such as discriminant stepwise, principal
component and cluster analyses. Statistical differences among populations for most
of the variables were detected and it is considered as an indicator of diversity. Native
populations were associated with Chalqueño, Conico, and Elotes Conicos races and
with sub-race Elotes Chalqueños. Variation among and within groups was identified,
suggesting that the environment and the dynamic process of selection from the farmers
on native maize populations in the highlands of the state of Puebla, support an important
variation among and within groups representative of the maize races in this area. On the
basis of the identified variation, breeding and conservation in situ of maize races can be carried out. |
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