Scholarlink

<p>This study evaluated the agronomic, physiological, and yield performance of three Ethiopian sesame (<i>Sesamum indicum</i> L.) cultivars, namely, Gondar 1, Humera 1, and Abasena under different levels of salt stress. A total of 36 pots filled with 6&#xa0;kg of soil were used to grow the cultivars in a completely randomized design with four treatments (0, 40, 80, and 120 mM NaCl) and three replications. Three‑week‑old seedlings were exposed to the salt treatments, and agronomic, physiological, and yield traits were measured following standard laboratory procedures. Data were analyzed using SPSS version 26. Significant variations were observed in morphological traits and salt tolerance indices due to salinity levels, cultivar differences, and their interaction. Increasing salinity significantly reduced shoot length, root length, leaf number, and leaf area in all cultivars. Shoot length decreased by 60.7% in Gondar 1, 48.9% in Humera 1, and 62.8% in Abasena. Chlorophyll and carotenoid contents also declined with increasing salt stress; the highest total chlorophyll content (0.69&#xa0;mg g⁻¹ FW) occurred in Abasena under high salinity, while Gondar 1 showed the lowest (0.40&#xa0;mg g⁻¹ FW). Yield performance was significantly affected by salinity, with reductions of 14.7%, 12.3%, and 48.4% in shoot fresh weight for Gondar 1, Humera 1, and Abasena, respectively. Humera 1 exhibited higher stress tolerance index, yield stress score index, geometric mean productivity, and mean productivity, indicating higher performance under salinity stress. Overall, Humera 1, followed by Gondar 1, was least affected. Further studies incorporating molecular analyses and broader physiological traits are recommended.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Effect of salinity on agronomic, physiological and yield performance of Ethiopian sesame (Sesamum indicum L.) cultivars

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年5月20日

查看全文
  • Moges Lemlemu Birhanu,
  • Abiyu Enyew Molla,
  • Getinet Masresha Kassa,
  • Animut Mekuriaw Andualem

摘要

This study evaluated the agronomic, physiological, and yield performance of three Ethiopian sesame (Sesamum indicum L.) cultivars, namely, Gondar 1, Humera 1, and Abasena under different levels of salt stress. A total of 36 pots filled with 6 kg of soil were used to grow the cultivars in a completely randomized design with four treatments (0, 40, 80, and 120 mM NaCl) and three replications. Three‑week‑old seedlings were exposed to the salt treatments, and agronomic, physiological, and yield traits were measured following standard laboratory procedures. Data were analyzed using SPSS version 26. Significant variations were observed in morphological traits and salt tolerance indices due to salinity levels, cultivar differences, and their interaction. Increasing salinity significantly reduced shoot length, root length, leaf number, and leaf area in all cultivars. Shoot length decreased by 60.7% in Gondar 1, 48.9% in Humera 1, and 62.8% in Abasena. Chlorophyll and carotenoid contents also declined with increasing salt stress; the highest total chlorophyll content (0.69 mg g⁻¹ FW) occurred in Abasena under high salinity, while Gondar 1 showed the lowest (0.40 mg g⁻¹ FW). Yield performance was significantly affected by salinity, with reductions of 14.7%, 12.3%, and 48.4% in shoot fresh weight for Gondar 1, Humera 1, and Abasena, respectively. Humera 1 exhibited higher stress tolerance index, yield stress score index, geometric mean productivity, and mean productivity, indicating higher performance under salinity stress. Overall, Humera 1, followed by Gondar 1, was least affected. Further studies incorporating molecular analyses and broader physiological traits are recommended.