红籽瓜种质资源形态多样性分析  

Morphological Diversity Analysis of Red-seed Edible Seed Watermelon Germplasm Resources

作　　者：柳唐镜[1,2,3] 于海彬中国科学院地理科学与资源研究所 张棵 吴素萍 

机构地区：[1]三亚市南繁科学技术研究院热带瓜菜研究室,海南三亚572000 [2]国家西甜瓜产业技术体系三亚综合试验站,海南三亚572000 [3]广西贺州市信都红籽瓜研究发展中心,广西贺州542813 [4]华中农业大学西甜瓜实验室,湖北武汉430070

出　　处：《中国蔬菜》2010年第20期19-26,共8页China Vegetables

基　　金：国家科技支撑计划项目(2009BADA2B02);国家西甜瓜产业技术体系专项资金资助(nycytx-36-02-17)

摘　　要：对51份红籽瓜种质资源形态多样性进行聚类分析和主成分分析。结果表明,红籽瓜种质资源39个形态性状变异系数为5.37%～66.95%,平均变异系数为22.87%,Shannon多样性信息指数平均值为1.55,种子长度Shannon多样性信息指数最高,为2.16;种皮覆纹最低,为0.32,数量性状多样性信息指数大于质量性状。通过主成分分析,第一主成分方差贡献率为19.49%,第二主成分方差贡献率为15.32%;第三主成分方差贡献率为9.55%。基于形态性状的聚类分析将51份红籽瓜种质分为三大类,其中第一类仅1份材料,第二类2份材料,前两类均为野生种材料。第三类48份材料,为栽培种材料。Shape multiple cluster analysis and principal components analysis were carried out up to 51 red-seed edible seed watermelon（Citrullus lanatus ssp. vulgaris var. megalaspermus Lin et Chao.） germplasm resources. The results indicated that the red-seed watermelon idioplasm resources 39 shape character coefficient of variation is 5.37 %-66.95 %, the average coefficient of variation is 22.87 %. The average Shannon multiple information indices are 1.55, the seed length Shannon multiple information indices are the highest 2.16. The seed shell duplicate grain is the lowest 0.32. The quantity character shape multiple information indices are bigger than the quality character. Through the principal components analysis, the first principal components variance technical progress factor is 19.49 %, the second principal components variance technical progress factor is 15.32 %. The third principal components variance technical progress factor is 9.55 %. Gathers based on the shape character＇s cluster analysis, 51 materials are divided into 3 broad headings. The first kind has only 1 material, the second kind has 2 material. The first 2 kinds are all wild species materials. The 48 material of the 3rd kind are cultivated material.

关 键 词：红籽瓜 种质资源 形态多样性 聚类分析 主成分分析 

分 类 号：S651[农业科学—果树学]