1996•Indian Journal of Genetics and Plant Breeding (The)Requires access
Genetic analysis of three mungbean crosses involving parents with different photothermal response for grain yield and component traits
Ajit Singh, Surendra Singh
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Abstract
The performance of hybrid generations of the cross Amp 45 x T 44 having both the photothermal nonresponsive parents was better than the cross Amp 20 x L 24-2 involving responsive parents for pods/plant, branches/plant, 100-grain weight and grain yield/plant. However, the performance of the cross Amp 45 X L 24-2 involving nonresponsive and responsive parents was the best. The analysis revealed that pods/plant, days to flower, grain yield/plant and plant height was governed predominantly by additive genes and duplicate digenic interaction in crosses involving parents of identical photothermal responsiveness while in the cross Amp 45 X L 24-2 all types of gene effect governed these traits. Transgressive segregates appeared in this cross. Intermating of transgressive segregates may lead to accumulation of favourable genes in the homozygous progenies.