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为了对麻核桃品种的性状进行选择和评价,以7个麻核桃品种的坚果为试材,对其纵径、横径、侧径、果形指数、三径均值和单果重进行了变异系数和主成分分析。结果表明:以性状的累积方差贡献率为85%以上,确定了2个反映麻核桃坚果主要性状的主成分,Y1方差贡献率为69.411,Y2方差贡献率为30.024;Y1主要反映坚果大小,‘大官帽’的Y1值最高为8.5,其次为‘满天星’和‘四座楼’,分别为0.71和0.54;Y2主要反映坚果果形,‘承德官帽’的Y2值最高为2.35,其次为‘满天星’和‘山西官帽’,分别为1.41和1.13。
In order to select and evaluate the characters of Hemp walnut varieties, seven varieties of nuts were used as test materials, and the coefficients of variation of longitudinal diameter, transverse diameter, lateral diameter, fruit shape index, Principal component analysis. The results showed that the main components of the main characters of phellodendron wallichii were determined with the contribution rate of accumulative variance of traits as 85% or more, and the main components of pheasant were identified. The Y1 variance contribution rate was 69.411 and the Y2 variance contribution rate was 30.024. Y1 mainly reflected the nut size, The highest Y1 value of the “big official hat” is 8.5, followed by ’gypsophila’ and ’four buildings’, respectively 0.71 and 0.54; Y2 mainly reflects the nut fruit shape, the highest Y2 value of ’Chengde official hat’ is 2.35, For the ’gypsophila’ and ’Shanxi official hat’, respectively, 1.41 and 1.13.