Determination of inheritance and gene effects for yield and yield components in chickpea
Author(s):
Abstract:
A 5×5 half diallel cross set of chickpea (Arman، Hashem، ILC588، ICCV2 and ILC3979) was studied to estimate gene effects and genetic parameters of seven traits. According to diallel variance analysis، only additive genes effects were found significant for plant height، basal pod height and number of primary branches. In addition to the significant additive gene effects، dominant gene effects were significant for 100-seed weight، harvest index، seeds and seed yield per plant. The degree of dominance average (H1/D) 1/2 was lower than one for plant height، basal pod height and harvest index، indicating partial dominance but for 100-seed weight، seeds and seed yield per plant it was higher then one and for number of primary branches it was equal to one that indicating over dominance and complete dominance respectively. The narrow-sense heritability were high for harvest index (67%)، 100-seed weight (56%)، basal pod height (47%) and plant height (42%) indicating that great genetic gain could be achieved for these traits. Dominant direction was negative and high for all traits with exception of plant height and basal pod height; hence for these traits amplifier alleles were dominance.
Keywords:
Language:
Persian
Published:
Journal of Applied Crop Research, Volume:24 Issue: 92, 2011
Page:
85
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