选购优质果树苗,除严格植物检疫制度,禁止从疫区调运苗木外,还应注意以下几点:1 苗禾高度 一般以苗主100厘米左右为宜,最矮不低于80厘米,最高不超过150厘米。如果幼苗过高,饱满的芽子都在枝条上部而枝条下部的芽瘦小且弱,栽植后定干时,枝条上部的饱满芽被剪去,留在整形带(距地面约60～80厘米)内的芽只能是些瘦弱瘪小芽。 Buy high-quality fruit saplings, in addition to strict phytosanitary system, prohibit the transfer of seedlings from the epidemic area, should also pay attention to the following points: 1 seedling height is generally about 100 centimeters of seedlings is appropriate, the shortest not less than 80 cm, the highest Not more than 150 cm. If the seedlings are too high, full of buds are in the top of the branches and shoots in the lower part of the bud thin and weak, dry after planting, the branches of the full buds are cut off, leaving the plastic belt (about 60 to 80 cm from the ground) Inside the bud can only be thin and weak deflated small buds.