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<p>Wheat (<i>Triticum aestivum</i>&#xa0;L.), a&#xa0;staple crop crucial for global food security, faces significant productivity challenges due to salinity stress in many agricultural regions. This study investigates the response of ten wheat varieties to salinity stress, focusing on seven agronomic and ten biochemical traits. All agronomic traits showed a&#xa0;significant reduction under salinity stress. Varieties V1 (NARC), V3 (SEHER), and V7 (DILKASH 2020) exhibited better performance under salinity stress in terms of agronomic and biochemical traits compared to other varieties. The biochemical traits revealed increased levels of proline, glycine betaine, lipid peroxidation, and Na+ content under stress, while other traits decreased. The genetic components of these traits identified membrane integrity index, K+&#xa0;content, relative water content, and plant height as promising indicators of salinity stress tolerance. Further, we revealed complex trait interactions through correlation analysis and identified direct and indirect effects through path coefficient analysis, providing insights into the wheat varieties responses to salinity stress. Overall, this research offers valuable insights into wheat performance and adaptability under salinity stress, supporting future breeding for resilience.</p>

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Comparative Genetic Analysis of Triticum aestivum Varieties Under Salt Stress: Integrating Morphological and Biochemical Traits

  • 期刊论文

  • 发表日期：

    2025年6月19日

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  • Shareef Gul,
  • Hameed Gul,
  • Muhammad Mudasir,
  • Maroof Fatima,
  • Hesheng Yao,
  • Ali Shahzad

摘要

Wheat (Triticum aestivum L.), a staple crop crucial for global food security, faces significant productivity challenges due to salinity stress in many agricultural regions. This study investigates the response of ten wheat varieties to salinity stress, focusing on seven agronomic and ten biochemical traits. All agronomic traits showed a significant reduction under salinity stress. Varieties V1 (NARC), V3 (SEHER), and V7 (DILKASH 2020) exhibited better performance under salinity stress in terms of agronomic and biochemical traits compared to other varieties. The biochemical traits revealed increased levels of proline, glycine betaine, lipid peroxidation, and Na+ content under stress, while other traits decreased. The genetic components of these traits identified membrane integrity index, K+ content, relative water content, and plant height as promising indicators of salinity stress tolerance. Further, we revealed complex trait interactions through correlation analysis and identified direct and indirect effects through path coefficient analysis, providing insights into the wheat varieties responses to salinity stress. Overall, this research offers valuable insights into wheat performance and adaptability under salinity stress, supporting future breeding for resilience.