1Department of Plant Breeding, G.B. Pant University of Agriculture & Technology, Pantnagar-263 145
2Plant Breeder (Pigeonpea), ICRISAT, Patancheru P.O., Andhra Pradesh 501 324; Senior Scientist (Pulses), G.B. Pant University of Agri. & Tech., Pantnagar, and Scientist (S1), Div. of Genetics, CRRI, Cuttack
*Apart of Ph. D. thesis submitted by senior author to G.B. Pant University of Agri. & Tech., Pantnagar
Pooled analysis of variance revealed the existence of high genotype-environment (GxE) interaction for all the characters. Inspite of the non-significance of linear component of GxE interaction, few genotypes exhibited b> 1 or b<l for seed yield per plant, seeds pe pod, and harvest index. The regression analysis of Eberhart and Russell (1966) has been useful in assessing the adaptation of various genotypes. Accordingly, the genotypes showing wide adaptability and specific adaptation were identified. K-4 was found suitable for better management conditions. Pant G-110 showed promise for moderate input management, and Kaka, NEC-240 and Pink-2 appeared worthwhile for poor environmental conditions.
