1ICAR-Indian Agricultural Research Institute, Jharkhand, 825 405, India
2Agricultural Research Station, Professor Jayashankar Telangana State Agricultural University, Rajendranagar, 505 001, Hyderabad, India
3Maize Research Station, Tamil Nadu Agricultural University, Vagarai, 624 613, Tamil Nadu, India
4Maize Research Center and Seed Farm, Devihosur, 581 110, Haveri, Karnataka, India
5Maize Research Station, Sardarkrushinagar Dantiwada Agricultural University, Bhiloda, 385 545, India
6Maharana Pratap University of Agriculture and Technology, Rajasthan College of Agriculture, Udaipur, 313 001, India
7ICAR-Indian Institute of Agricultural Biotechnology, Ranchi, 834 003, Jharkhand, India
ICAR-Indian Institute of Maize Research, PAU Campus, Ludhiana, 141 004, Punjab, India
*Corresponding Author: Mukesh Choudhary, ICAR-Indian Institute of Maize Research, PAU Campus, Ludhiana, 141 004, Punjab, India, E-Mail: mukesh.agri08@gmail.com
Online published on 2 July, 2025.
Maize is mainly a rainfed crop prone to drought stress, suffering yield losses. The present study evaluated eleven early and nine late maturity hybrids to identify widely adapted genotypes under drought stress and irrigated conditions at the flowering stage. Genotypes showed 25.2% yield reduction under drought over irrigated conditions. GGE biplot analysis demonstrated major effect of environment (72-85%) on grain yield followed by genotype × environment (8-18%), identifying two different mega-environments under drought stress. Suitable selection indices identified DRMH 1417, DKC 7074 in the early and CMH12-686 in late maturity group as high-yielding and drought-tolerant hybrids.
Drought stress, GGE biplot, Stress tolerance, Mega-environments, Selection indices
