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通过对49个杂交组合2542株梨杂种实生苗亲本性状遗传倾向的观察研究看出,在河南郑州地区,梨杂种后代的童期为4～5年,6年生杂种一般开花株率可达70%以上;童期的长短主要受亲本遗传特性的制约;梨杂种后代果实重量一般较亲中值小27%,但有些组合超亲现象明显,一般超亲19.2%;果形遗传似表现为圆或扁圆对卵圆或圆锥为显性;皮色遗传表现为黄对褐为显性;肉质的遗传表现为细脆、紧脆和粗脆对细嫩占优势,细嫩型所占比重约为30%;在品质遗传方面,鸭梨、麻梨、库尔勒香梨易将其优良品质传给后代,在鸭梨×金花梨的后代中,果实大小和风味品质超亲现象明显。
By observing the genetic predisposition of 49 hybrid combinations of 2542 pear hybrid seedlings, we can see that in the Zhengzhou area of Henan, pear offspring have a child-bearing period of 4 to 5 years and the average annual flowering rate of 6-year-old hybrids can reach 70% ; The length of childhood is mainly affected by the genetic characteristics of the parents; pear hybrid offspring weight is generally 27% less than the median, but some combinations of super-progeny phenomenon is obvious, the general super-pro 19.2%; fruit genetic similar to the performance of round or Oblate oval or cone for the dominant; brown color genetic manifestations of brown dominant; fleshy genetic performance as fine crisp, crisp crisp and crisp on the delicate dominant, fine type accounted for about 30% In terms of quality inheritance, pear, berry and Korla fragrant pear easily pass on their excellent quality to the offspring. The fruit size and flavor quality of the progeny of the pear / Jinhua pear were obvious.