Lentil (Lens culinaris Medik.) seeds are an excellent source of staple dietary protein that can be a viable plant‐based alternative protein source to food processing industries. Understanding of the basis of genotype × environment (G × E) interaction is fundamental knowledge for plant breeding. We explored genetic stability and G × E for seed protein content and protein yield for 34 lentil genotypes using AMMI (additive main effects and multiplicative interaction) and SREG (site regression) models. Genotypes were evaluated under field conditions in five locations at western Canada during 2017–2018. Protein content and protein yield were 21.6–26.9% of seed dry weight and 156.8–1113.0 kg ha⁻¹, respectively, across 10 environments. Environment and G × E had fewer effects on protein content than protein yield. Higher seed protein content was observed in the extra‐small red market class. Based on both models, genotypes IBC 1235, 3923‐9, 3674‐17, IBC 929R, and 4371‐4 with stable protein productivity would be useful genetic resources for the development of protein‐rich varieties in lentil breeding programs. Our results suggest genetic improvement of protein and protein yield together is possible for lentil.

中文翻译：

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扁豆种子蛋白含量和蛋白产量的遗传稳定性和基因型×环境相互作用分析

扁豆（Lens culinaris Medik。）种子是日常膳食蛋白质的极好来源，可以作为食品加工行业可行的基于植物的替代蛋白质来源。了解基因型×环境（G×E）相互作用的基础是植物育种的基础知识。我们使用AMMI（加性主效应和乘性相互作用）和SREG（位点回归）模型探索了34种小扁豆基因型的种子蛋白含量和蛋白产量的遗传稳定性和G×E。在2017-2018年期间，在加拿大西部五个地点的田间条件下对基因型进行了评估。蛋白质含量和蛋白质产量为种子干重的21.6–26.9％和156.8–1113.0 kg ha ^-1分别跨10个环境。环境和G×E对蛋白质含量的影响要小于蛋白质产量。在极小的红色市场类别中观察到较高的种子蛋白质含量。基于这两种模型，具有稳定蛋白质生产率的基因型IBC 1235、3923-9、3674-17，IBC 929R和4371-4将是有用的遗传资源，可用于在扁豆育种计划中开发富含蛋白质的品种。我们的结果表明，扁豆可以同时提高蛋白质和蛋白质产量的遗传改良。