亲和力　亲缘关系越近的亲和力强 ,反之则弱。可以概括为同属中的不同种亲和力强 ,如苹果与西府海棠 ,桃与毛桃、国槐与龙爪槐等。温度　温度的高低是影响嫁接能否成活的因素之一。果树接合部位温度在 2 2～ 2 5℃之间最易成活 ,过高过低都影响成活。一般春季 4～5月份 ,秋季 8 Affinity kinship closer to the affinity, and vice versa is weak. Can be summarized as belonging to the different kinds of affinity, such as Apple and West House Begonia, peach and peach, Sophora japonica and other places. Temperature and temperature is one of the factors that affect the survival of grafting. Fruit junction temperature at 2 2 ~ 2 5 ℃ most likely to survive, too much is affected by low survival. General spring 4 ~ May, autumn 8