نهمین کنفرانس ملی و اولین کنفرانس بین المللی فیزیولوژی گیاهی

رفتن به صفحه اصلی

ارائه مجازی مقاله

کد مقاله 1382

عنوان Evaluation of Rice Genotypes (Oryza sativa L.) for Salinity Tolerance Using Stress Tolerance Indices

نویسندگان Ali Akbar Ebadi - Soheil Karamniya - Seyedeh Soheila Zarbafi

چکیده Salinity is one of the most important constraints limiting rice growth and yield, and the selection of salt-tolerant genotypes is essential for cultivation in saline regions. In this study, 83 rice lines along with four check cultivars (two salt-tolerant and two salt-sensitive) were grown under normal and saline conditions, and their yields were evaluated. Salinity tolerance indices including Stress Tolerance Index (STI), Geometric Mean Productivity (GMP), Harmonic Mean (HM), Stress Susceptibility Index (SSI), Tolerance (TOL), and Mean Productivity (MP) were calculated to assess the ability of the lines to maintain yield under salinity stress. Data analysis showed that STI, GMP, and HM were highly correlated with each other and can be considered effective criteria for identifying salt-tolerant genotypes. Evaluation of superior lines revealed that genotypes 72 and 8 exhibited both the lowest percentage of yield reduction and the highest values of STI, GMP, and HM, making them the best candidates for breeding programs and cultivation in saline areas. The results emphasize that the simultaneous use of multiple tolerance indices along with yield reduction percentage is an appropriate approach for screening salt-tolerant genotypes and can be effectively applied in rice breeding programs.

فایل ها

فایل پوستر pdf مقاله

ارائه مجازی مقاله

محتوای ارائه مجازی مقاله

نظرات