山西甜玉米地方品种的表型多样性分析  

Analysis of Phenotypic Diversity of Sweet Corn Landraces in Shanxi

作　　者：张丛卓[1] 白建荣[1,2,3] 常利芳 张效梅 李锐 杨瑞娟[1] 

机构地区：[1]山西省农业科学院作物科学研究所,山西太原030031 [2]山西省农业科学院现代农业研究中心,山西太原030031 [3]农业部黄土高原作物基因资源与种质创新重点实验室,山西太原030031

出　　处：《山西农业科学》2017年第12期1907-1911,共5页Journal of Shanxi Agricultural Sciences

基　　金：山西省种业发展专项(2014ZYF2-12)

摘　　要：对不同来源的50份甜玉米地方品种的16个农艺性状进行了表型多样性分析。结果表明,山西省甜玉米地方品种以黄色籽粒、柱形穗为主,各农艺、经济性状的变幅较大,以雄分支数的变异系数最大,为28.74%,其次是百粒质量,变异系数为26.35%。多样性分析表明,山西省甜玉米地方品种的多样性指数较高,以穗行数为最高(2.07),其次是行粒数(2.04),可见,其多样性丰富。根据表型鉴定出12份早熟品种(生育期为100~104 d),7份矮秆品种(低于150 cm),大穗品种2份,大粒品种5份。表型聚类结果表明,50份甜玉米地方品种可以划分为4个类群,且各自具有不同的表型特征及育种价值。研究结果为解决我国甜玉米种质资源匮乏的现状,提供了类型丰富的种质资源。Phenotypic diversities of 50 sweet corn landraces were evaluated on 16 agronomic traits through phenotypic comparison,and cluster. The results showed that male branch number and 100 grain quality varied greatly among them. Euclidean distance among the50 sweet corn landrace was calculated based on these phenotypic traits. Based clustering analysis, the 50 landraces were separated into4groups, and each of them possessed a distinct phenotypic characterization, which indicated a high potential value of these germplasm insweet corn breeding. The study results provide rich recourses of sweet corn with detailed information for solving the problem of germplasmresources of sweet corn lack in China.

关 键 词：甜玉米 地方品种 表型 多样性 

分 类 号：S513[农业科学—作物学]