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云南省农科院园艺研究所苹果育种组的科研人员,1980年用“黄魁”与“富士”杂交,将收获的杂交种子于次年播种。在精心培育下,实生树1984年开始结果。根据几年的观测,该杂交单系“早熟一号”在昆明地区3月下旬始花,7月上旬成熟。其最大特点是抗早期落叶病,无采前落果现象。
Yunnan Academy of Agricultural Sciences Institute of Horticulture apple breeding group of researchers, in 1980 with the “Huang Kui” and “Fuji” cross, the harvest of hybrid seeds planted the following year. Under carefully nurtured, the real tree started the result in 1984. According to several years’ observation, the hybrid single line “Premature” began to flower in late March in Kunming and matured in early July. Its most prominent feature is the resistance to early deciduous disease, no fruit drop before the phenomenon.