Selection of high nitrogen fixation chickpea genotypes under drought stress conditions using multi-environment analysis
Rattachement africain : lb, Égypte, Soudan. Niveau de preuve : code pays fourni par la source.
Le résumé fourni par la source
Introduction: ) is an important pulse crop mainly grown in marginal lands around the world. Drought stress highly impacts symbiotic nitrogen fixation (SNF) in chickpeas, which can limit productivity. Therefore, selecting high nitrogen fixation chickpea genotypes that can tolerate water stress is important for breeding programs. Methods: A total of 204 chickpea genotypes were assessed in eight different environments across Lebanon during the 2016 and 2017 growing seasons, under both rainfed and irrigated conditions. The study employed an Alpha Lattice design with two replications at two distinct locations. Data were collected for yield and nodule characteristics, then subjected to AMMI and GGE biplot analysis. Results and Discussion: The AMMI analysis indicated that genotype (G), environments (E), and genotype × environment interaction (GEI) had significant effects on grain yield (P<0.001), highlighting the presence of genetic variation and the potential for selecting stable genotypes. The findings revealed that the environmental effect predominantly influenced chickpea grain yield, with GEI following, and G having the least impact. Environment explained 34.5% of the total (G + E + GE) variation, whereas G and GEI captured 16.4% and 24.3%, respectively. According to grain yield (GY), genotype IG70399 demonstrated the highest performance across all environments, while genotype IG8256 displayed the most consistent performance across different conditions. In a rainfed environment, genotype IG73394 had higher nodulation, while IG70384 and IG70410 had higher nodulation biomass (NB) under an irrigated environment. The NB for ten highly tolerant genotypes increased by 24% compared to the two susceptible genotypes under drought stress conditions, while the NB for these ten genotypes increased by 14.6% compared to all studied genotypes.
Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.
Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.
- Titre Crossref
- Selection of high nitrogen fixation chickpea genotypes under drought stress conditions using multi-environment analysis
- Date Crossref
- 07/04/2025
- Éditeur
- Frontiers Media SA
- Type
- journal-article
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.
Où se fait cette recherche
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International Center for Agricultural Research in the Dry Areas pays non établi dans la noticeStructure de recherche
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Agricultural Genetic Engineering Research Institute Genome Mapping Giza, Égypte (code pays fourni par la source)Structure de recherche
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Agricultural Research Corporation Soudan (code pays fourni par la source)Organisation à but non lucratif
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Department of Biotechnology pays non établi dans la noticeInstitution
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Department of Genetic Innovation pays non établi dans la noticeInstitution
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Agriculture Research Center (ARC) Department of Oil Crops Soudan (pays nommé en fin d’affiliation)Structure de recherche
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Department of Chickpea Plant Breeding pays non établi dans la noticeInstitution
International Center for Agricultural Research in the Dry Areas, Genome Mapping — Agricultural Genetic Engineering Research Institute (Giza, Égypte) et Agricultural Research Corporation (Soudan), avec 4 autres affiliations. Pays d’affiliation : Égypte, Soudan.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.