桂花、山茶、杜鹃、腊梅、白玉兰、金银花、紫薇等生根比较困难的花木 ,除可使用萘乙酸、吲哚乙酸等生长素处理插条外 ,也可用一些经济简便的方法促使它们生根。( 1 )将插条基部 2ｃｍ浸入 0 .1 %～ 0 .5%高锰酸钾水溶液中 1 2～ 1 4ｈ ,取出后立即扦插。 ( 2 )用白糖水溶液处 Osmanthus fragrans, camellia, Rhododendron, Lamei, Magnolia, honeysuckle, crape myrtle and other more difficult to take root, in addition to the use of naphthalene acetic acid, indole acetic acid and other auxin treatment of cuttings, but also can be some simple and economical method to promote their rooting. (1) dipping the base of the cuttings 2 cm into 0.1% ~ 0.5% potassium permanganate aqueous solution for 12 to 14 hours, and cutting immediately after removing. (2) with white sugar solution