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植物新品种特异性、一致性和稳定性(DUS)测试是新品种保护的基础和依据,测试性状的筛选是DUS测试的核心。为制定无髯鸢尾DUS测试指南,初步确定测试性状43个,结合性状间R型聚类分析性状间相关性,去除相关性大、贡献较小的雌蕊长、叶长性状,最终确定操作性强、区别明显的测试性状41个;利用品种间Q型聚类分析确定测试指南的分组性状4个;对性状进行分级及分布分析,保证无髯鸢尾测试指南的可行性,为无髯鸢尾品种测试与授权提供技术支持。
Plant Variety Specificity, Consistency and Stability (DUS) testing is the basis and basis for the protection of new varieties, and the screening of test traits is at the core of DUS testing. In order to establish the guideline of DUS test, we initially determined 43 test traits, analyzed the correlation between the traits by R-type cluster analysis, and removed the long and long pistils with high correlation and small contribution, and finally determined the operability , Respectively. There were 41 distinct test traits. Four QTLs were used to identify the grouping traits. The traits were graded and distributed to ensure the feasibility of the test guideline. With authorization to provide technical support.