Genetic variability and association among yield and yield components in advanced breeding lines in sesame (Sesamum indicum L.)
GENETIC VARIABILITY AND ASSOCIATION AMONG YIELD AND YIELD COMPONENTS IN SESAME
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Authors
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P SRIVALLI
Agricultural Research Station, ANGRAU, Utukur, Kadapa-516 003, Andhra Pradesh
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K SUNIL KUMAR
Agricultural Research Station, ANGRAU, Utukur, Kadapa-516 003, Andhra Pradesh
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V MADHURI
Agricultural Research Station, ANGRAU, Utukur, Kadapa-516 003, Andhra Pradesh
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M SREENIVASA CHARI
Agricultural Research Station, ANGRAU, Utukur, Kadapa-516 003, Andhra Pradesh
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T BHAGAVATHA PRIYA
Agricultural Research Station, ANGRAU, Utukur, Kadapa-516 003, Andhra Pradesh
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V CHANDRIKA
Agricultural Research Station, ANGRAU, Utukur, Kadapa-516 003, Andhra Pradesh
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G PRABHAKARA REDDY
Agricultural Research Station, ANGRAU, Utukur, Kadapa-516 003, Andhra Pradesh
Keywords:
Genetic variability, Genotypes, Path coefficient analysis, Sesame, YieldAbstract
A total of 24 sesame genotypes including four checks were evaluated for yield and yield components in Randomized Complete Block Design in two replications. Analysis of variance revealed significant differences among the genotypes for most of the characters studied. The magnitude of phenotypic coefficient of variation (PCV) and genotypic coefficient of variation (GCV) was moderate to high for number of branches per plant, number of capsules per plant and seed yield. High heritability was observed for the traits viz., number of branches per plant, days to 50% flowering and number of capsules per plant. Genetic advance as per cent of mean for number of capsules per plant was higher while moderate for number of branches per plant, seed yield and plant height in the advanced sesame genotypes. Correlation analysis indicated significant and high positive correlation of number of capsules per plant and test weight with seed yield at both genotypic and phenotypic level. Path analysis indicated that the traits such as number of capsules per plant, capsule length and 1000 seed weight had high positive direct effects on seed yield. These traits are to be given due importance in the selection and advancing of genotypes in sesame breeding programme.
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References
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