鲜食葡萄品种资源果实数量性状变异及概率分级  

Variation and Probability Grading of Main Quantitative Traits of Table Grape Resources

作　　者：马小河[1] 赵旗峰[1] 董志刚[1] 唐晓萍[1] 王敏[1] 任瑞[1] 

机构地区：[1]山西省农业科学院果树研究所,太谷030801

出　　处：《植物遗传资源学报》2013年第6期1185-1189,共5页Journal of Plant Genetic Resources

基　　金：农业部农作物种质资源保护项目(NB2012-2130135);农业部黄土高原作物基因资源与种质创制重点实验室项目

摘　　要：为了更好地对葡萄种质资源进行评价研究，丰富数量化、规范化的葡萄种质资源描述系统内涵，对国家果树种质太谷葡萄圃114份鲜食有核葡萄品种的果实主要数量性状（果穗长度、果穗宽度、果穗重量、果粒纵径、果粒横径、果粒重量、果穗大小、果粒大小等）进行了分析研究，结果表明，8个性状变异系数均在17％以上，果粒重量变异系数最大为48．05％；果穗宽度变异系数最小为17．58％；果穗重量的变异幅度最大，为100．0—1030．0g，变异系数为41．28％；果粒横径的变异幅度最小，为1．3—3．5cm，变异系数为20．82％。K—S检验表明，8个数量性状的Sig值均大于O．05，符合正态分布。对符合正态分布的数量性状统一用（x-1．2818s）、（x-0．5246S）、（x＋0．5246S）、（x＋1．2818S）4个点分级，1—5级出现的频率分别为10％、20％、40％、20％和10％。本研究为葡萄种质资源果实性状的描述规范和数据标准化的建立提供了参考。In order to make better research, enrich the content of quantitative and normalized grape germplasm descriptor system, 114 table grape cultivars from the National Grape Germplasm Repository in Taigu were studied, mainly 8 quantitative characteristics, including cluster length, cluster width, cluster weight, vertical diameter of ber- ry,transverse diameter of berry, berry mass, average size of cluster and average size of berry. The results showed that the coefficients of variation of all the 8 characteristics were above 17%. The largest one occurs in berry mass （48.05%） ,while the smallest in cluster width （17.58%）. The largest variation range was in cluster weight （100.0-1030. 0 g）, with the variation coefficient of 41.28% , while the smallest in transverse diameter of berry （1.3 -3.5 cm） , with the coefficient of 20. 82%. These main quantitative characteristics were also analyzed by K-S test. The results showed that the values of characteristics could be divided into 5 grades by dividing points of（X- 1. 2818S） , （X-0. 5246S） , （X ＋0. 5246S） and （X ＋ 1. 2818S）. Occurrence probability of 1 to 5 grade was 10% , 20% ,40% ,20% and 10% respectively. This research will provide reference for specification and data standardiza- tion of grape descriptor system.

关 键 词：鲜食葡萄 果实 数量性状 概率分级 

分 类 号：S663.1[农业科学—果树学]