Identification of pigeonpea genotypes with wider adaptability to rainfed environments through AMMI and GGE biplot analyses

M. V. Nagesh Kumar; V. Ramya; C. V. Sameer Kumar; T. Raju; N. M. Sunil Kumar; G. Seshu; G. Sathish; D. Bhadru; M. V. Ramana

M. V. Nagesh Kumar Professor Jayashankar Telangana State Agricultural University, Rajendranagar 500 030, Hyderabad, Telangana
V. Ramya Professor Jayashankar Telangana State Agricultural University, Rajendranagar 500 030, Hyderabad, Telangana
C. V. Sameer Kumar Professor Jayashankar Telangana State Agricultural University, Rajendranagar 500 030, Hyderabad, Telangana
T. Raju University of Agricultural Sciences, Raichur 584 104, Karnataka
N. M. Sunil Kumar University of Agricultural Sciences, Raichur 584 104, Karnataka
G. Seshu Professor Jayashankar Telangana State Agricultural University, Rajendranagar 500 030, Hyderabad, Telangana
G. Sathish Sri Konda Laxman Telangana State Horticultural University, Mulugu 502 279, Telangana
D. Bhadru Professor Jayashankar Telangana State Agricultural University, Rajendranagar 500 030, Hyderabad, Telangana
M. V. Ramana Professor Jayashankar Telangana State Agricultural University, Rajendranagar 500 030, Hyderabad, Telangana

Keywords: Pigeonpea, GE Interaction, GGE biplot, AMMI, stability, ideal genotype.

Abstract

Pigeonpea [Cajanus cajan (L.) Millspaugh] is an important pulse crop grown under Indian rainfed agriculture. Twenty eight pigeonpea genotypes were tested for stability and adaptability across ten rainfed locations in the States of Telangana and Karnataka, India using AMMI (additive main effects and multiplicative interaction) model and GGE (genotype and genotype by environment) biplot method. The grain yields were significantly affected by environment (56.8%) followed by genotype × environment interaction (27.6%) and genotype (18.6%) variances. Two mega environments were identified with several winning genotypes viz., ICPH 2740 (G15), TS 3R (G10), PRG 176 (G8) and ICPL 96058 (G22). E2 (Gulbarga, Karnataka), E3 (Bidar, Karnataka) and E6 (Vikarabad, Telangana) were the most discriminating environments. Genotypes, ICPH 2740, PRG 176 and TS 3R were the best cultivars in all the environments whereas PRG 158 (G9), ICPL 87119 (G12), ICPL 20098 (G19) and ICPL 96058 (G22) were suitable across a wide range of environments. Genotypes, ICPH 2740 and PRG 176 can be recommended on a large scale to the farmers with small holdings to enhance pigeonpea productivity and improve the food security