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通过对早酥梨正反交获得的1328株杂种实生苗的观测和遗传倾向研究.结果表明:杂种后代果实形状倾向亲本,倾亲率为82%;早酥作父本的后代果形遗传传递力较作母本的强.梨果实大小遗传后代倾向减小,果实重量为亲中值的76%;早酥作父本时后代果实较大.杂种后代果心呈较大变异,后代果心为亲本的1.35倍,小果心组合的后代果心较小;早酥作父本的后代小果心株率高于作母本的.杂交后代果实品质变劣,劣变率为95%;早酥作父本的后代果实品质较好.亲本童期为4年的杂交组合,后代童期在3—6年之间,平均为5年.
Through the observation and genetic predisposition on 1328 hybrid seedlings obtained from reciprocal crosses of early-morning pear, the results showed that the progeny rate of 82% The force is stronger than that of the female parent.The size of the progeny of the pear fruit tends to decrease, the weight of the fruit is 76% of the pro-median value, the fruit of the progeny of the early morning sweetheart is larger, the fruit heart of the hybrid offspring shows larger variation, Was 1.35 times of that of the parents, and the fruit of the offspring of the small fruit-heart combination was smaller.The rate of small fruit heart was lower in the progeny of the early morning cousin than in the female parent.The quality of fruit in the offspring of hybrid was worse and the rate of bad change was 95% The fruit quality of the parents of Zaocao was better than that of the parents.Parents had a 4-year-old hybrid combination with a mean of 5 years after the offspring’s 3-6 years.