Stability analysis of stress-resilient maize (Zea mays L.) hybrids across stressed and non-stressed environments
Material type:
ArticleLanguage: English Publication details: India : Excellent Publishers, 2019.ISSN: - 2319-7706
| Item type | Current library | Collection | Call number | Status | Date due | Barcode | Item holds | |
|---|---|---|---|---|---|---|---|---|
| Article | CIMMYT Knowledge Center: John Woolston Library | CIMMYT Staff Publications Collection | Available |
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Open Access
Field experiments were conducted during spring (heat stress), kharif (optimal) and rabi (moisture stress) 2018 at Agriculture College Farm, Bheemarayanagudi and Main Agricultural Research Station, Raichur to assess the stability of maize hybrids under stress and optimal conditions. Twelve maize hybrids along with five commercial checks were evaluated in Randomized Block design with three replications. Pooled analysis of variance revealed significant variations among the hybrids for all the traits, except shelling percentage. The mean sum of squares due to genotype × environment interactions and linear component of genotype × environment interaction were significant only for test-weight indicating the diversity among the selected environments. Based on stability parameters, hybrids viz., RCRMH-5, RCRMH-12 and RCRMH-2 for plant height, RCRMH-12 for number of kernels per cob, BGMH-2 for shelling percentage, RCRMH-10 and RCRMH-9 for test-weight and RCRMH-12 and RCRMH-4 for grain yield (kg ha-1) were identified as stable as they recorded regression values nearer to unity, nonsignificant deviation from the regression across the locations.
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