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关于苹果矮化密植的课题,我区已进行了多年的研究,然迄今未得到圆满的解决,关键是尚未找到一个理想的矮密砧穗组合。经过1981年严重早霜冻的考验,发现引进的M系和MM系矮砧的表现很不理想,但却找到了抗寒力较强的矮化中间砧“宁8”(自育砧木);三年后,又筛选出它的砧穗组合“J.C.—G1号”。该砧穗突出地表现了早期丰产特性。作为我区矮密栽培的先导之一,宜尽早公布于世,以便获得更广泛的检验。
On apple dwarf dense planting issues, our district has conducted many years of research, but so far not been satisfactorily resolved, the key is not yet found an ideal combination of dwarf root scion. After the test of severe early frost in 1981, it was found that the performance of imported M series and MM series of dwarf anvil was not ideal, but “Ning 8” (self-rootstock) with stronger cold hardiness was found; Years later, it screened its scion combination “JC-G1 number.” The scion highlights the early yield characteristics. As one of the pioneers of the dwarf cultivation in our region, it is advisable to announce it as soon as possible so as to obtain a wider inspection.