دورية
Evaluation of Thirty Lentil (Lens culinarisMedik.) Genotypes Suitable for Drought Stress Based on Morpho-biochemical Traits and Stress Tolerance Indices
| العنوان: | Evaluation of Thirty Lentil (Lens culinarisMedik.) Genotypes Suitable for Drought Stress Based on Morpho-biochemical Traits and Stress Tolerance Indices |
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| المؤلفون: | Hasan, Md. Mostofa Ali, Mondal, Upama, Azam, Md. Golam, Hossain, Md. Amir, Sarkar, Umakanta, Gaber, Ahmed, Hossain, Akbar |
| المصدر: | Journal of Crop Health; August 2024, Vol. 76 Issue: 4 p903-916, 14p |
| مستخلص: | Drought is one of the major abiotic factors for reducing yield in lentils. In the past few decades, the severity of drought stress has become a concerning issue for Bangladesh. Therefore, this study was undertaken to screen drought-tolerant germplasms from 30 lentil genotypes, among which 10 genotypes were released varieties of the Bangladesh Agricultural Research Institute and Bangladesh Institute of Nuclear Agriculture, and the remaining 20 genotypes were introduced by the International Center for Agricultural Research in the Dry Areas (ICARDA) based on morphological and biochemical traits of plants grown under control and drought stress conditions. This study indicated that all genotypes possess a substantial degree of genetic variation. All the traits had heritability (h2b) ranging from moderate to high (66.13–96.03%). High h2b values, along with high genetic advances, were detected for the number of pods per plant and the number of seeds per plant, indicating the potential for improving these characteristics. There was a significant positive correlation for most of the characteristics under study. Cluster analysis grouped 30 genotypes into five dissimilar clusters. The maximum number of genotypes was under cluster V (nine genotypes), while cluster III consisted of five genotypes that were tolerant genotypes. Several stress tolerance indices were calculated from yields under normal and drought stress conditions for 10 genotypes selected based on yield and yield-related characteristics. Based on these indices, BARI Masur‑5, Binamasur‑8, and ILL-6299 were categorized as tolerant genotypes. According to the assessment of lipid peroxidation in terms of malondialdehyde (MDA) content, BARI Masur-5 had the lowest MDA content under both conditions, followed by Binamasur‑8, ILL-6299, and ILL-5127. In contrast, ILL-87039, BLX-05007, and BARI Masur-1 had greater amounts of MDA, indicating their susceptibility to drought stress. These findings may be useful for further breeding improvement programs for the development of drought-tolerant lentil varieties under climate-changing regimes. |
| قاعدة البيانات: | Supplemental Index |
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