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

作　　者：姚宗泽 杨艳 字珍兰 杨晓洪[1] 刘艳芳[1] 王世敏 YAO Zongze;YANG Yan;ZI Zhenlan;YANG Xiaohong;LIU Yanfang;WANG Shimin(Quality Standards and Testing Technology Research Institute,Yunnan Academy of Agricultural Sciences,Kunming,Yunnan650205,China;School of Agriculture and Life Sciences,Zhaotong University,Zhaotong,Yunnan 657000,China)

机构地区：[1]云南省农业科学院质量标准与检测技术研究所,云南昆明650205 [2]昭通学院农学与生命科学学院,云南昭通657000

出　　处：《福建农业学报》2025年第1期45-52,共8页Fujian Journal of Agricultural Sciences

基　　金：农业农村部科技发展中心委托测试品种DUS测试项目(DUSWT11);云南大天种业有限公司刘艳芳专家基层科研工作站(2023);云南省“智汇云南”计划项目(202303AM140011);云南省国际科技特派员(个人)项目(202303AK140026);中-越-缅水稻种子质量检测科技合作基地项目(GHJD-2022012)。

摘　　要：【目的】筛选适合在低纬高原生态区域种植的玉米DUS测试标准品种,充分发挥玉米DUS测试中标准品种的示例和矫正作用。【方法】参照《植物品种特异性、一致性和稳定性测试指南玉米》的具体要求对100个试验材料的37个数量性状进行测试,同时基于玉米品种性状数据按《植物品种特异性一致性稳定性测试总论》中标准品种筛选原则进行玉米标准品种筛选,并利用NTSYSpc 2.10e统计软件对筛选的玉米标准品种进行聚类分析和总体评价。【结果】筛选到可作为在低纬高原生态区域种植的玉米DUS测试标准品种29个,覆盖37个数量性状,可示例159个表达状态,平均每个品种可示例约5.5种性状表达状态,每个性状约有4.3种性状表达状态可被标准品种示例;聚类结果显示,筛选的29个玉米标准品种间的相似系数为0.7841~0.9098。【结论】本试验筛选到的29个玉米DUS测试标准品种覆盖性状及表达状态范围广、品种示例能力强,可作为云南等低纬高原区域进行玉米DUS测试的标准品种,为标准品种的进一步使用和相关研究奠定理论基础并提供参考。【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 

分 类 号：S513[农业科学—作物学]