一、看果苗的根系状况:优质果苗根系发达,侧根、须根多,侧根分布较均匀,主根直。侧根少或不具备侧根的老苗不宜购买。二、看果苗的粗、高度:果苗茎干应达到0.8～1厘米(从嫁接部位以上10厘米处测量)。果苗的高度适宜,一般一、二等级的果苗的高度达到1米左右即可,最高不宜超过1.5米(从嫁接部位向上测量)。三、看果苗叶芽情况:在定干部位以下40～80厘米 First, look at the seedling root system Condition: high-quality seedling roots developed, lateral roots, fibrous roots, lateral root distribution is more uniform, the main root straight. Lateral roots or not with lateral roots of the old seedlings should not be purchased. Second, see the seedlings of coarse, high: seedling stems should reach 0.8 to 1 cm (10 cm above the graft from the measurement). Fruit nursery height suitable, generally one or two levels of fruit seedlings height can reach about 1 meter, the maximum should not exceed 1.5 meters (upward from the graft site measurement). Third, to see the seedling leaf bud situation: the fixed part of the following 40 to 80 cm