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1选育经过1989年春季开花期进行杂交,1990年春季播种出苗后,按预选标准选取有希望的50个单株采穗,1991年春季在高接圃内金冠树(基砧为山定子)上高接,1993年高接树开始结果,1994年开始育苗,之后连续观察记载果实性状。逐株调查单系植物学特征及生物学特性,按照育种目标进行初选?
1 Breeding After the spring flowering period in 1989, hybridization was carried out. After the seedlings were sown in the spring of 1990, 50 promising ears were selected according to the preselected criteria. In the spring of 1991, the golden crown tree On the high access, high tree in 1993 began the results, seedlings began in 1994, followed by continuous observation and recording of fruit traits. Plant by plant investigation of single botany characteristics and biological characteristics, in accordance with the breeding objectives of primary?