Selection on Superior Strains of Py rus ussuriensis
In 2012‐2013 ,fruit size ,individual plant production ,sclereid content ,juice yield ,soluble solids content , soluble sugar content of selected Pyrus ussuriensis .were measuremented and evaluated .Results show that 12 indi‐viduals in 8 strains of Pyrus ussuriensis .selected from 22 individuals in 12 strains on one or more characters were best .YS10‐5 ,YS15‐1 ,YS15‐2 ,YS11‐2 have good table qualities ;YS6‐8 ,YS6‐9 ,YS10‐5 ,YS15‐1and YS15‐2 Have good processing qualities ;YS6‐9 ,YS11‐5 ,YS10‐5 ,YS15‐1 ,YS9‐2 ,YS13‐6 ,YS13‐4 ,YS14‐2 ,YS14‐5 , YS8‐4 and YS7‐6 have high yield ;The fruits of YS10‐5 ,YS11‐2 ,YS11‐5 and YS15‐1 were large and good quali‐ties .Through individual comprehensive evaluation by fuzzy membership function on 22 individuals in 12 strains , there are 9 superior individual in 6 superior strains ,its mean of membership function the were large ,from big to small in turn were YS10‐5 ,YS11 ,YS11‐5 ,YS9‐2 ,YS15‐1 ,YS14‐5 ,YS11‐2 ,YS6‐9 ,YS10‐2 and YS15‐2 ,the mean range of membership function was 0 .5068‐0 .8335 .
国家科技期刊平台
NSTL
万方数据
维普
