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在以平欧榛为母本,龙江平榛为父本的回交中,F1的平均坚果重较母本小1.73%,较父本大88%;平均出仁率较母本小3.04%,较父本大19.5%;果壳厚度较接近于父本。F1植株径干生长量、冠幅开张度、侧枝发枝力近似母本,比父本基径生长量约大1倍,侧枝发枝数也大于父本。母本引种6年后植株主干的死亡率和雄花越冬受害率仍分别为6.4%、31.6%,F1植株基本消除这一危害。F1的单株结实量也比引进的平欧榛有较大提高,这些均说明母本的树体发育特性遗传力较强,父本的高耐寒性遗传力较强。
In the backcrossing of Pingou Hazel and Pingjiang of Longjiang, the average nut weight of F1 was 1.73% less than that of female parent, 88% more than that of male parent, and the average kernel rate was 3.04% less than that of female parent. The male parent was 19.5% larger; the shell thickness was closer to the male parent. The dry weight of F1 plants, the degree of opening of coronary artery, the degree of branch branches and branches were similar to that of female parent, which was about 1 times larger than that of male parent. The number of branch branches was also larger than that of male parent. Six years after the introduction of female parent, the death rate of the trunk and overwintering of the male flowers were still 6.4% and 31.6% respectively. The F1 plant basically eliminated the harm. The grain yield per plant of F1 was also greatly improved than that of Pingou hazel. All these indicated that the heritability of tree development was stronger and that of male parent was higher.