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Assessment of adaptability and seed yield stability of rainfed lentil (Lens culinaris Medik) genotypes in cold dryland regions in Iran
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Seyedeh Soudabeh Shobeiri   , Ali Akbar Asadi , Mozhghan Tabrizi Vand Taheri , Hadi Shorideh |
| Field and Horticultural Crops Science Research Department, Zanjan Agricultural and Natural Resources Research and Education Center, AREEO, Zanjan, Iran |
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Abstract: (58 Views) |
Introduction: Adaptability and yield stability of crop cultivars under different environmental conditions is one of the important goals in crop breeding programs. Therefore, selection of genotypes with yield stable and reliablity for increasing yield under different environmental conditions is among the most important goals in sustainable crop production. Legume crops are often grown in rotation with cereal crops, because of their role in fixing nitrogen in the soil. In recent decades, breeders have paid great attention to lentil breeding programs, focusing on breeding cultivars with high yield and yield stability, high seed quality, and tolerance to biotic and abiotic stresses. In this regard, identifying new adapted lentil cultivars that are high yielding with yield stabilty is also of paramount importance.
Materials and Methods: Seven advanced rainfed lentil genotypes, developed by lentil breeding program at Dryland Agricultural Research Institute of Iran, along with three control cultivars (Kimia, Bilesavar and Sana) were evaluated for seed yield and yield stability in three cropping seasons 2021-22, 2022-23 and 2023-24 in a randomized complete block design with three replications at three research stations in the cold rainfed regions Maragheh; Mara., Shirvan; Shir, and Zanjan; Zan. The GGE biplot and AMMI methods were used to assess the adapatability and seed yield stability of lentile genotypes.
Results: Combined analysis of variance showed that the effect of environment and genotype × environment interaction effect on seed yield was significant. Environment, genotype, and the interaction of them explained 78.5%, 3.4% and 12.6% of the total sum of squares variation, respectively. AMMI analysis of variance showed that the first and second principal components explained 72% of the total variation related to the genotype × environment interaction. Genotypes G6 and G1, with the lowest IPCA1 and higher than average seed yield, were identified as yield-stable genotypes with high broad adaptation. Genotype G8 had specific adaptability with Mara3 environment, genotype G4 with the Mara1 and Mara2 environments, and genotypes G2 and G3 with the Zan1 environment. GGE Biplot analysis showed that genotypes G6, G1, and to some extent G9 were among the most yield-stable genotypes with above-average seed yield. The Zan3 environment with the ability to differentiate and representation was suitable environment for selection of adapted genotypes with high yield. The Zan1, Zan2 and Mara3 environments in the circles near the origin of the biplot also had the lowest ability to separate genotypes. Genotypes G5, G1, and G6 were identified as the best genotypes with the shortest distance from the hypothetical ideal genotype. Finally, environments Shir1, Zan3, Shir2, and Zan2 (Shirvan and Zanjan) on the one hand, and environments Mara1, Mara2, and Zan1 on the other hand, can be considered as similar environments due to their high correlation.
Conclusion: Lentil genotypes G5, G1 and G6 were identified as the superior genotypes. Genotypes G6 and G1 were identified as hiher yielding and seed yield-stable genotypes with high broad adaptation.
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| Keywords: AMMI analysis, Biplot analysis, and Broad adaptation, Rainfed lentil and Seed yield |
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Full-Text [PDF 775 kb]
(39 Downloads)
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Type of Study: Scientific & Research |
Subject:
Special
Received: 2025/11/22 | Accepted: 2026/01/11 | Published: 2026/03/30
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