福建农业学报2025，Vol.40Issue(1)：45-52,8.
低纬高原生态区域玉米DUS测试标准品种筛选研究
DUS Test for Standard Varieties of Maize Grown in Ecological Regions on Low Latitude Plateaus
摘要
Abstract
[Objective]The DUS test for establishing standard varieties of maize suitable for cultivation in ecological areas on a plateau of low latitude was examined to facilitate the resource utilization.[Method]Applying 37 quantitative characteristics of 100 maize cultivars and under the specific requirements stipulated in the Guide,standard varieties were selected in accordance with the published"General Rules of Tests for Distinctness,Uniformity and Stability".The chosen maize varieties as candidates in the standard group were subjected to cluster analysis and overall evaluation by NTSYSpc 2.10 e prior to final designation.[Result]The 29 maize varieties selected from the 100 cultivars by the DUS test used 37 quantitative characteristics that covered 159 expressive statuses,averaging 5.5 per variety and approximately 4.3 expressive statuses per specific characteristic.The clustering similarity coefficients on them ranged 0.7841-0.9098.[Conclusion]There were 29 maize varieties selected by the DUS test as standards.They encompassed a wide range of agronomic traits and phenotype expressions with statistical meaningful representation of maize for breeding program in the regions.关键词
DUS测试/玉米/标准品种/聚类分析Key words
DUS test/maize/standard variety/cluster analysis分类
农业科学引用本文复制引用
姚宗泽,杨艳,字珍兰,杨晓洪,刘艳芳,王世敏..低纬高原生态区域玉米DUS测试标准品种筛选研究[J].福建农业学报,2025,40(1):45-52,8.基金项目
农业农村部科技发展中心委托测试品种DUS测试项目(DUSWT11) （DUSWT11）
云南大天种业有限公司刘艳芳专家基层科研工作站(2023) （2023）
云南省"智汇云南"计划项目(202303AM140011) （202303AM140011）
云南省国际科技特派员(个人)项目(202303AK140026) （个人）
中-越-缅水稻种子质量检测科技合作基地项目(GHJD-2022012) （GHJD-2022012）
