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Farming & Management

Assessing genetic stability of grain quality and vigour in wheat (Triticum aestivum L.) genotypes for climate change resilience


DOI: 10.31830/2456-8724.2025.FM-178    | Article Id: FM-178 | Page : 124-132
Citation :- Assessing genetic stability of grain quality and vigour in wheat (Triticum aestivum L.) genotypes for climate change resilience. Farm. Manage. 10: 124-132
GADDAM TARUN, KRISHAN PAL, KAVITA RANI, R P SAHARAN AND MAYUR H. CHAUDHARI iamtarungaddam@gmail.com
Address : Department of Genetics and Plant Breeding, Guru Kashi University, Talwandi Sabo-151302, Punjab, India
Submitted Date : 16-11-2025
Accepted Date : 24-11-2025
Online Published:

Abstract

Climate change, especially terminal heat stress, poses a major threat to wheat production by affecting both crop establishment and grain quality. Developing climate-resilient cultivars requires identifying genotypes that can maintain stable seed Vigour and grain quality under different thermal conditions. Therefore, it is necessary to evaluate the genetic stability of these key traits in diverse wheat genotypes to identify promising lines for breeding heat-resilient varieties. This study aimed to assess the genetic stability of seed Vigour and grain quality parameters in 43 diverse wheat genotypes. Laboratory experiments were conducted on seeds produced under two contrasting field environments: a temperate condition (E1: 2023-24) and a heat-stress condition (E2: 2024-25). Analysis of variance revealed highly significant (P< 0.01) genotypic differences for all ten evaluated traits, confirming substantial genetic variability. The heat-stress environment generally compromised seed performance, significantly reducing mean germination to 85.09% and seedling dry weight to 0.16 g, while notably increasing mean grain protein content to 12.69%. Among the genotypes, WH 1182 demonstrated superior stability with one of the highest Seed Vigour Index-I values (3548.75) under stress. PBW 750 excelled in biomass accumulation, achieving the highest seedling dry weight (0.49 g) and Seed Vigour Index-II (46.17) in the stress environment. Furthermore, HD 2307 proved genetically stable for grain quality, maintaining the highest protein content (15.90%) under heat stress conditions.

Keywords

Climate resilience genetic stability heat stress protein content seed vigour Triticum aestivum

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