Scholarlink

<p>In Iran, lentil is mainly cultivated by smallholders in rainfed conditions, who have been growing native lines for decades. Terminal drought and heat stresses, along with the lack of high-yielding, mechanically harvestable varieties, limit lentil yield. Since 2014, a targeted breeding program has evaluated 1,040 native lines using pure line selection, resulting in the identification of 44 promising lines by 2022. In the present study, the 44 native lines along with 16 ICARDA-derived lines, four cultivars from the FCCRI of Turkey, and four checks were evaluated under rainfed field conditions in 2023 and 2024. The 28 final genotypes were selected through a three-stage selection method: First, genotypes were compared using LSD mean comparisons for each trait; next, they were evaluated relative to an ideotype within phenological, morphological, and agronomic trait groups; and finally, selected and ranked based on overall similarity to a final ideotype representing desirable performance in the trait groups. Although yield performance varied among the native lines, the highest-yielding genotypes were found within this group. Several ICARDA lines and FCCRI cultivars demonstrated better performance in height-related traits. Moreover, a subset of ICARDA lines showed advantageous phenological features. Across both the 2023 and 2024 seasons, cluster analysis classified the genotypes into five groups: two comprising native lines, two consisting of ICARDA lines, and one containing FCCRI cultivars. These results provide a foundation for a future breeding program for identifying high-performing and stable lentil cultivars through further evaluations in multiple rainfed regions of Iran over several years.</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

Multi-trait evaluation and selection of native lentil (Lens culinaris Medik.) lines to improve yield, earliness, and mechanical harvestability under rainfed conditions

  • 期刊论文

  • 发表日期：

    2026年5月27日

查看全文
  • Zeinab Mohammadi,
  • Jalal Saba,
  • Afshin Tavakoli,
  • Kamran Afsahi

摘要

In Iran, lentil is mainly cultivated by smallholders in rainfed conditions, who have been growing native lines for decades. Terminal drought and heat stresses, along with the lack of high-yielding, mechanically harvestable varieties, limit lentil yield. Since 2014, a targeted breeding program has evaluated 1,040 native lines using pure line selection, resulting in the identification of 44 promising lines by 2022. In the present study, the 44 native lines along with 16 ICARDA-derived lines, four cultivars from the FCCRI of Turkey, and four checks were evaluated under rainfed field conditions in 2023 and 2024. The 28 final genotypes were selected through a three-stage selection method: First, genotypes were compared using LSD mean comparisons for each trait; next, they were evaluated relative to an ideotype within phenological, morphological, and agronomic trait groups; and finally, selected and ranked based on overall similarity to a final ideotype representing desirable performance in the trait groups. Although yield performance varied among the native lines, the highest-yielding genotypes were found within this group. Several ICARDA lines and FCCRI cultivars demonstrated better performance in height-related traits. Moreover, a subset of ICARDA lines showed advantageous phenological features. Across both the 2023 and 2024 seasons, cluster analysis classified the genotypes into five groups: two comprising native lines, two consisting of ICARDA lines, and one containing FCCRI cultivars. These results provide a foundation for a future breeding program for identifying high-performing and stable lentil cultivars through further evaluations in multiple rainfed regions of Iran over several years.