摘要
根据湖南、湖北两省野生三叶木通9个茎藤及果实性状的广义方差及主成分分析结果,探讨了三叶木通种源质量及优良品种茎藤、果实性状的选择重点。广义方差分析结果表明:湖北省鹤峰产地的野生三叶木通,9个茎藤及果实性状综合评价为最好,其次是湖北省宜昌、湖南省石门、永定、慈利产地的三叶木通。主成分分析结果表明:在三叶木通优良品种茎藤及果实性状选择中,果皮厚度、单果重、籽重、果皮重及茎藤纹理为第一主成分要素,为首选性状;果实容重、茎藤容重、茎藤色泽及果皮率为第二主成分要素,为比较重要的选择性状;适当注重较深茎藤色泽性状的选择,有可能尽量减少果实容重下降。所以,三叶木通茎藤及果实性状的选择,可以考虑3个主选性状:茎藤纹理及单果重为主体的果实性状、茎藤色泽性状和茎藤容重性状。
By general variance analysis and the principal component analysis to nine stem and fruit characteristics of natural Akebia trifoliata (Thunb.) Koidz. in Hunan and Hubei Provinces, this paper focus on the selection of the quality of variety resources of A. trifoliata and its improved breed's stem and fruit characteristics. The results of general variance analysis showed that the synthetic evaluation of nine stem and fruit characteristics of A.trifoliata in Hubei Hefeng was ranked first, and that of A.trifoliata in Hubei Yichang, Hunan Shimen, Yongding, Cili was second. The results of principal component analysis showed that the first principal component and principal characteristics were the pericarpic thickness, single fruit weight, seed weight, pericarp weight and stem venation in the selection of improved breed of A.trifoliata. The second principal characteristics were the units volume weight of fruit, units volume weight of stem, stem color and pericarpic percentage. It's possible to decrease the dropping of the units volume weight of fruit by pay more attention to the selecting of stem color. Therefore, in the selection of stem and fruit characteristics of A. trifoliata, the three main characteristics were the fruit characteristics which principal part is stem venation and single fruit weight, the stem color and the units volume weight of stem.
出处
《武汉植物学研究》
CSCD
北大核心
2005年第3期280-284,共5页
Journal of Wuhan Botanical Research
基金
国家科技部重大科技专项(2001BA701A53)资助。
关键词
三叶木通
茎藤性状
果实性状
Akebia trifoliata
Stem characteristics
Fruit characteristics
