Abstract Development of high yielding and stable cultivars of various crops across the Southern African Development Community (SADC) member states is in line with the recently enacted SADC’s seed harmonisation act. This study, therefore, focused on evaluating soybean [Glycine max (L.) Merrill] lines developed by the International Institute of Tropical Agriculture (IITA) for yield and stability across SADC test environments using the additive main effects and multiplicative interaction (AMMI) analysis. Twenty-five elite lines (five checks and 20 experimental) were evaluated at six locations across four SADC countries during the 2017/18 season in a 5*5 alpha lattice design, replicated three times at each location. The locations were: IITA-SARA, Lusaka West and Chipata in Zambia; Chitedze in Malawi; Nampula in Mozambique; and Rattray Arnold Research Station in Zimbabwe. The environment, genotype, and genotype x environment interaction (GEI) effects were highly significant (p

中文翻译：

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南部非洲不同生产环境中大豆（Glycine max (L.) Merrill）谷物产量的基因型 x 环境相互作用分析

摘要 在南部非洲发展共同体 (SADC) 成员国内开发各种作物的高产和稳定品种符合最近颁布的 SADC 种子协调法。因此，本研究的重点是评估由国际热带农业研究所 (IITA) 开发的大豆 [Glycine max (L.) Merrill] 品系，使用加性主效应和乘性相互作用 (AMMI) 分析在整个 SADC 测试环境中的产量和稳定性. 在 2017/18 赛季期间，在四个 SADC 国家的六个地点评估了 25 条精英品系（5 条检查和 20 条实验线），采用 5*5 阿尔法网格设计，在每个地点重复 3 次。地点是：赞比亚的 IITA-SARA、Lusaka West 和 Chipata；马拉维的奇特泽；莫桑比克楠普拉；和津巴布韦的拉特雷阿诺德研究站。环境、基因型和基因型 x 环境相互作用 (GEI) 效应非常显着 (p