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Tamil Nadu Agricultural University Coimbatore, INDIA

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GENETIC VARIABILITY AND CORRELATIONS AMONG YIELD AND YIELD CHARACTERS OVER TWO ENVIRONMENTS IN PEA

M.K. Tyagi*, C.P. Srivastava

Affiliations

¹Department of Genetics and Plant Breeding, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi - 221 005, India

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Cite article:- Tyagi* M.K., Srivastava C.P. (2025). GENETIC VARIABILITY AND CORRELATIONS AMONG YIELD AND YIELD CHARACTERS OVER TWO ENVIRONMENTS IN PEA. Indian Journal of Agricultural Research. 36(1): 53 - 56. doi: .

ABSTRACT

Twenty varieties of pea comprising of 15 lines and 5 testers of Indian and exotic origins and their 75F 1 hybrids produced by line x tester mating design were evaluated in two dates of sowing i.e, normal sown crop (NSC) and late sown crop (LSC) conditions for nine yield related traits. A wide range of variability was evidenced for plant height, pods per plant and biological yield plant. The F 1 hybrids showed higher range of variation as compared to parents for almost all the characters and greater in normal sown crop (NSC) conditions. The phenotypic and genotypic coefficient of variability was higher for pods per plant, biological yield per plant and seed yield per plant in parents (in NSC) in comparison to F 1 (in LSC), respectively. High broad sense heritability was observed for seed yield per plant, seeds per pod and harvest index. High genetic advance was noticed for plant height and pods per plant. Seed yield per plant was strongly associated with biological yield per plant, pods per plants, plant height,days to maturity and seeds per pod. The correlation coefficients among traits were least affected by time of planting.

KEYWORDS

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