基于GGE双标图分析的大豆种质资源油分含量的稳定性评价

Seed Oil Content Stability Analysis in Soybean through GGE Biplot Method

摘要: 高含油量是大豆重要的育种目标，大豆油分含量是复杂的数量性状，受环境影响大，评价大豆种质资源籽粒油分含量的适应性和稳定性是选育高油大豆品种的基础。为准确评价大豆种质资源油分含量的稳产性和适应性，采用GGE双标图法在黑龙江省哈尔滨市，广西壮族自治区南宁市，海南省三亚市三个试验点对120份大豆种质资源进行了分析。结果表明黑龙江省大豆品种合丰50为油分含量稳定性较高的品种，且该品种能够适应哈尔滨、南宁、三亚的环境，在3个环境条件下油分含量均表现较稳定；对于油分含量鉴定方面，哈尔滨可作为独立代表性试验点，而三亚和南宁对油分的影响程度较为接近，可任选取其一作为代表性试验点进行评价。

Abstract: High oil content is one of the most important goals in soybean breeding. Soybean oil content is a complex quantitative trait, which is affected by the environment. Evaluating the adaptability and stability of the seed oil content of soybean germplasms is the basis of breeding high oil soybean varieties. In order to accurately evaluate oil content stability in soybean, a total of 120 germplasms were analyzed in Harbin, Nanning and Sanya through GGE biplot. The result showed that “Hefeng50” from Heilongjiang province belongs to higher oil content and is stable to three tested sites. In the three test sites, Sanya and Nanning have similar discriminated ability for oil content and either can be used as one representative tested site. While Harbin that has different effect on evaluating seed oil content should be treated as an independent test site.