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1993•Madras Agricultural JournalOpen access

GENETIC VARIABILITY IN SOYBEAN

NIRMALA KUMARI A, M. Balasubramanian

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Abstract

The genetic parameters viz., genotypic and phenotypic variances, genotypic co-efficient of variation, heritability and genetic advance were assessed from seventy genotypes of soybean. The varieties showed highly significant differences in mean values for all the characters studied. All the characters showed very high heritability. High genotypic coefficient of variation was observed for leaf area and number of primary branches per plant. Plant height, number of pods, leaf area and total dry weight per plant exhibited high amount of genetic variation, high heritability and genetic advance.

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The genetic parameters viz., genotypic and phenotypic variances, genotypic co-efficient of variation, heritability and genetic advance were assessed from seventy genotypes of soybean. The varieties showed highly significant differences in mean values for all the characters studied. All the characters showed very high heritability. High genotypic coefficient of variation was observed for leaf area and number of primary branches per plant. Plant height, number of pods, leaf area and total dry weight per plant exhibited high amount of genetic variation, high heritability and genetic advance.

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Available abstract

The genetic parameters viz., genotypic and phenotypic variances, genotypic co-efficient of variation, heritability and genetic advance were assessed from seventy genotypes of soybean. The varieties showed highly significant differences in mean values for all the characters studied. All the characters showed very high heritability. High genotypic coefficient of variation was observed for leaf area and number of primary branches per plant. Plant height, number of pods, leaf area and total dry weight per plant exhibited high amount of genetic variation, high heritability and genetic advance.

Key concepts: Heritability, Biology, Genetic variation, Coefficient of variation, Genotype, Genetic variability, Horticulture, Agronomy

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