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Paper Details

Variability for root traits in early growth stages of pigeonpea [Cajanus cajan (L.) Millsp.]

PRASANNA V. SAKHARE*, P.S. DHARMARAJ1, B. FAKRUDIN2 AND R. LOKESHA

Journal Title:International Journal of Agricultural Sciences
Abstract


Assessment of genotypic variation for root traits among 20 genotypes of pigeonpea chosen from core collection was done. Root traits were measured at 30 days after sowing. Analysis of variance for the 4 quantitative root traits studied revealed highly significant differences among the genotypes. UPAS-120 recorded highest root volume, number of lateral roots, root to shoot dry weight ratio and total dry matter indicating that it has desirable root traits to tolerate drought in later stages of growth. Very low difference between PCV and GCV values were observed for number of lateral roots indicating little influence of environment on the expression of these traits in this set of genotypes. Very high heritability estimates were observed for the characters like root volume, number of lateral roots, root to shoot dry weight ratio and total dry matter. This reveals considerable genotypic component of variability which might be of much value in the selection programme

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