夏季气温高、湿度小,插穗叶面蒸腾大,枝条基部切口水分的吸收与上部水分的消耗不能平衡,是造成木本花卉夏季扦插不易成活的关键因素。但是,夏扦枝条的分生组织形成层活动旺盛,在高温高湿、尤在ＡＢＴ生根粉或萘乙酸等生根介质的作用下,其切伤扦插部位易愈合生根,并能大大缩短插 In summer, the temperature is high, the humidity is low, and the leaf surface transpiration is large. The absorption of moisture at the base of cuttings and the consumption of the upper part of water can not be balanced, which is the key factor that makes woody flowers not easy to survive in summer. However, the summer branch branches meristem formation activity, in the high temperature and humidity, especially ABT rooting powder or naphthalene acetic acid and other rooting medium under the action of its cutting cuttings easy to heal, and can greatly shorten the plug