Genetic Parameters of Seed Yield, Yield Components and Plant Height in Lentil

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Abstract

For estimation and graphical analysis of genetic parameters related to plant height, yield and yield components in lentil, six parental genotypes along with 30 F2 generations derived from compete diallel crosses between them (totally 36 genotypes) were grown in a randomized complete block design with three replications at research farm of Shahre Kord University in 2012. From each experimental plot, fourty F2 and ten parental plants were randomly selected and desired characteristics were measured. Estimation of average degree of dominance and results of graphical analysis showed that gene action was of complete dominance type for plant height. However, incomplete dominance type of gene action was observed for number of pods per plant, number of seeds per plant, 100 seed weight, seed yield and number of seeds per pod. The highest amount of narrow-sense heritability (77%) was observed for 100 seed weight and number of seeds per plant and the lowest (32%) for plant height. Proportion of genes with positive and negative effects (H2/4H1) differed from 0.25 in all traits which indicated that the frequency of positive and negative genes is not equal in the parents.

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Seed and Plant Journal
Volume 30, Issue 3
October 2014
Pages 573-584

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