Assessing phenotypic variability and environmental interactions in wheat (Triticum aestivum) using the Eberhart and Russell Model
The stability of wheat (Triticum aestivum L.) genotypes across diverse environments is crucial for breeding programmes aiming to improve yield potential and resilience to climate variability. The present study was carried out during winter (rabi) seasons of 2019–2020 and 2020–2021 at Chaudhary Char...
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| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Indian Council of Agricultural Research
2025-06-01
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| Series: | The Indian Journal of Agricultural Sciences |
| Subjects: | |
| Online Access: | https://epubs.icar.org.in/index.php/IJAgS/article/view/157523 |
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| Summary: | The stability of wheat (Triticum aestivum L.) genotypes across diverse environments is crucial for breeding programmes aiming to improve yield potential and resilience to climate variability. The present study was carried out during winter (rabi) seasons of 2019–2020 and 2020–2021 at Chaudhary Charan Singh Haryana Agricultural University, Hisar, Haryana to evaluate 16 morphological traits in wheat under normal sown conditions, drought stress, heat stress and combined drought and heat stress utilizing the Eberhart and Russell stability model. The trial was conducted in randomized complete block design (RCBD). Significant genotype-by-environment (G × E) interactions were observed, underscoring the importance of selecting stable, high-yielding genotypes. Genotypes BRW 3806, DBW 303, and HD 2967 demonstrated superior yield stability across environments, making them ideal candidates for climate-resilient wheat breeding. Early-maturing genotypes DBW 110 and HD 2967 showed promise in escaping terminal heat stress, while genotypes with reduced plant height HD 2967, were well-suited for minimizing lodging risk. Spike and grain characteristics, including spike length and grain weight per spike, were directly correlated with higher yield potential, particularly in genotypes WH 1235 and BRW 3806. The study highlights the importance of integrating traits early maturity, reduced plant height and enhanced grain characteristics into aimed at enhancing wheat productivity and resilience are crucial for adapting to the challenges posed by climate change.
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| ISSN: | 0019-5022 2394-3319 |