TY  - EJOU
AU  - O, Antuna Grijalva  
AU  - Herrera, SA Rodríguez  
AU  - Banda, A Espinoza  
AU  - Ríos, P Cano  
AU  - Valencia, G Llaven   
AU  - Rodríguez, JL Coyac  
AU  - Torres, A González  
AU  - Sánchez, DG Reta  
AU  - Elos, M Mendoza  
AU  - Enríquez, E Andrio  

TI  - Genetic components of agronomic traits in maize landraces and their hybrid progeny
T2  - Phyton-International Journal of Experimental Botany

PY  - 2017
VL  - 86
IS  - all
SN  - 1851-5657

AB  - Knowledge of the genetic components of agronomic traits is an important factor to characterize landraces of maize to make them useful in plant breeding programs. The objective of this work was to know the genetic action and combining ability of several agronomic traits of five maize races and their crosses. Maize landraces analyzed were Jala, Tuxpeño, Celaya, Pepitilla and Dulce. Plant height, days to male and female flowering date after planting, and dry matter and grain yields were recorded. Those variables showed highly significant differences among genotypes. With the exception of dry matter yield, the other variables showed significant general combining ability effects (GCA). Statistically, plant height and female flowering date did not show specific combining ability (SCA) differences. Pepitilla x Dulce and Jala x Tuxpeño crosses, and Jala and Celaya parents, were the best dry matter and grain yields. Plant height, male and female flowering dates, and grain yield were controlled by additive genes. On the other hand, dry matter yield showed non-additive gene action.
KW  - <i>Zea mays</i> L.
KW  -  Diallel crosses
KW  -  Genetic effects
KW  -  Variance components

DO  - 10.32604/phyton.2017.86.246