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受冬季低温冷害限制,在一月份平均气温-12℃或以北的广大宜果地段,长期不能栽植优质大苹果。为了培育抗寒优质苹果新品种,我们从七十年代末始,共同主持苹果抗寒育种课题。选东光作母本,富士作父本,通过杂交授粉,再从杂种实生苗中筛选优系。经过15年努力,现已从万株杂种后代中选育成功经济性状超双亲的新品种——宁丰。已通过省级品种审定并列入名特优推广项目。现将其主要经济性状介绍如下:一、树体抗塞性状经连续数年观察,新品种树体抗寒性明显超过
Limited by the winter cold and cold damage, in January the average temperature of -12 ℃ or north of the majority of the area should not long-term planting high-quality large apples. In order to cultivate high-quality cold hardy new varieties of apples, we from the late seventies co-host the issue of cold-resistant apple breeding. Selected as the mother of Dongguang, Fuji father, pollination through hybrids, and then hybrid seedlings in the selection of excellent system. After 15 years of hard work, a new breed of super-parents with successful economic traits has now been bred from 10,000 hybrid offspring - Ningfeng. Has passed the provincial-level varieties validated and included in the gifted marketing projects. Now the main economic traits are introduced as follows: First, the resistance of the tree traits after several years of continuous observation, the new varieties of trees significantly more than the cold hardiness