Variabilidad en poblaciones de maíz nativo de la Mixteca Baja Oaxaqueña, México
Genetic diversity of the maize populations in Mexico is very dynamic and depends on biological, agroecological, and socio-economic factors and familiar needs. In this study, the morphological variability of a collection of 60 population samples of maize were described and classified, such samp...
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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=4520 |
| Sumario: | Genetic diversity of the maize populations in Mexico is very dynamic and
depends on biological, agroecological, and
socio-economic factors and familiar needs.
In this study, the morphological variability
of a collection of 60 population samples of
maize were described and classified, such
samples were collected in 44 communities
from Low Mixtec-Oaxaca region (846 masl
to 1842 masl). The samples were sown and
cultivated during crop cycle Sprig-Summer
2010 at Santo Domingo Tonala, Oaxaca,
under a randomized complete design with
four replications. Nineteen morphological
traits of plant, ear, kernel and tassel were
evaluated and significant differences among
maize populations were determined in these
characters. The traits height plant and ear,
number of kernels per row were determinants
to describe the total morphological variability.
Morphological and phenological variation
of the maize populations was associated
with patterns of altitudinal and geographic
variation of the sample origin. Six phenotypic
groups with significant differences among
them but with similar ear, kernel and plant
traits to describes for races Celaya, Bolita,
Pepitilla, Ancho and some racial complexes
among Ancho, Mixteco, Celaya and Bolita. |
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