Genetic Characteristics of Branching and Some Yield
Components in F2 Populations of Sesame
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Author:P. Sumathi* and V. Muralidharan
p-ISSN:0024-9602, e-ISSN:2582-5321, Vol:97, Issue:apr-jun
DOI: https://doi.org/10.29321/MAJ.10.100360
Abstract
An experiment was conducted with F2 populations of eleven crosses to test the variation of
individual F2 s and to study the genetic characteristics of the trait branching, seed yield and
other yield attributing traits. The magnitude of variability was much higher in all the eleven
crosses for number of primary branches, number of capsules per plant and seed yield per
plant. It was noticed that all the crosses showed desirable frequency of positive transgressive
segregants (FPTS) for all the traits. All the crosses skewed positively for number of primary
branches, number of capsules and seed yield per plant. The dispersion of F2 population is of
leptokurtic in nature for seed yield per plant in all the crosses except TMV 5 x KS 990812 which
showed platykurtic distribution. The trait, number of branches showed platykurtic distribution
in six crosses indicating wider variability in that population. The cross TMV 5 x KS990812
displayed favorable number of branches with high variability for seed yield and the cross
TMV 4 x KS990813 displayed high mean and variability for seed yield and number of capsules
per plant. Hence these two crosses could be considered as the most promising to obtain
desirable segregants and the selected progenies from this population could be utilized for
further study in the next generation.
Key words : Sesame, F2 population, skewness, kurtosis and variability