首红优质丰产栽培技术首红苹果来源于美国华盛顿州奥赛罗县，１９７４年从新红星中选出的浓红型短枝芽变单株。我所于１９８３年从兴城中国农科院果树所引入，１９８８年又直接从美国引进无毒矮化苗木。经过９年试验示范观察，证明该品种具有树体紧凑、矮小，短枝性状明显... The first red high-quality high-yield cultivation techniques The first red apple from the United States, Washington, Othello County, 1974, selected from the new red star thick spruce shoots change individual. In 1983, I was introduced from Xingcheng Chinese Academy of Agricultural Sciences fruit trees, in 1988 and directly from the United States to introduce non-toxic dwarfing seedlings. After 9 years of trial demonstration and demonstration, proved that the species has a compact tree, short, obvious characteristics of spur ...