10 cross combination with Kuerlexiangli as one of parents and their hybrid posterity were used for discussing the inheritance trend of main characters of pear. The results were as following:
1. How long juvenile phase lasts is a quantitative character which is controlled by multigene and presented wide-ranging distribution. The average juvenile phase is 6.5 years. The fruit size is affected by environment and non-additive effects. The average fruit size of progenies is smaller than mid-parent val...