石棉县优良核桃种质资源的聚类分析

为准确合理地评价四川省石棉县核桃种质资源,以三径平均值、风干果质量、仁质量、壳厚、出仁率、粗脂肪、粗蛋白为指标对石棉县调查的42个核桃资源材料进行系统聚类分析.结果表明,资源材料间经济性状差异明显,42个资源材料被划分为4类:第Ⅰ类是普通食用核桃,因其与一般普通核桃相比具有更高的蛋白质含量(13.69％),故具有较高的...

Cluster Analysis of Walnut Elite Germplasm Resources of Shimian Based on Economic Characteristics

In order to assess the situation of walnut gerplasm in Shimian of Sichuan province,clustering analysis was conducted based on diameter,per fruit weight,per kernel weight,shell thin,kernel rate,crude lipids,and crude proteins in 42 plus trees.The results showed that rich diversities existed in economic characteristics among the plus tree and the 42 plus tree were clustered into four groups:the groupⅠwere common edible walnut which compared to ordinary walnut,has a higher protein content the group(13.69%) and have higher nutritive value.The group Ⅱ were thin-shell and high-fat walnut which was suitable for the development of the oil with walnut with high economic value due to its thin shell and high fat content.The group Ⅲ was paper-shell and small size walnut,and like Cathay Hickory in shape,but smaller than Cathay Hickory,thinner shell,and can used as a new class of varieties,with good development potential.The group Ⅳ was high-protein huge walnut,both of these walnut-shaped fruit with high nutritional value,has a good market competitiveness and high economic value.The result can be used as a further research on germplasm resources evaluation and to select improved variety.