对云南省元谋干热河谷引进的相思树种进行嫁接试验 ,结果表明 :嫁接季节应选在雨季 ,方法以腹接最好 ,为了保证杂种相思较高的嫁接成活率 ,最好选择大叶相思为砧木 . Acacia species introduced in Yuanmou dry and hot valley in Yunnan Province were grafted on. The results showed that the grafting season should be selected in the rainy season, and the method was the best in the belly connection. In order to ensure the higher graft survival rate of Acacia hybrids, Rootstock.