GENETIC VARIABILITY AND SELECTION PARAMETER FOR SEED YIELD IN PIGEON PEA [CAJANUS CAJAN (L.)MILLSP.]

A. K. Srivastava, Shailesh Kumar, H. C. Singh*, Geeta Rai, Manoj Mishra and Narendra Yadav

ABSTRACT

An experiment consisting 35 diverse genotypes of Pigeon pea [Cajanus cajan (L.) Millsp.] was conducted in Randomized Block Design (R.B.D.) with three replications at Oilseed Research Farm, Kalyanpur of Chandra Shekhar Azad University of Agriculture and Technology Kanpur during kharif 2020-2021. Each genotype was sown in single row of single row 4m., distance between row to row 75cm. and distance of plant to plant 25 cm. respectively. Data were recorded on plant height, days to flowering, days to maturity, number of primary branches, number of secondary branches, number of seeds per pod, number of pods per plant, biological yield per plant (g), harvest index (%) and seed yield per plants (g). The analysis of variance showed highly significant variations of means sum of squares for all the characters under study. High level of genetic variability was noted for all the characters. High heritability coupled with high genetic advance was observed for majority of the characters under study and under the control of additive genetic effects. Grain yield per plant showed positive and significant correlations with plant height, number of secondary branches, biological yield per plant and harvest index.

Keywords: Pigeon pea, Genetic variability, Heritability, Genetic advance, correlation.