一、试验材料与方法: 1986年和1987年的3—5月份,我们分别在赖店乡象岭村、张埔村、溪埔村龙眼苗圃,用径粗0.5厘米(离地面10厘米处)以上的实生苗,进行单芽切接试验。嫁接时根据砧木生长情况,选择离地面10—25厘米树皮比较光滑处剪砧;接穗选取优良品种健树上一年生的幼枝,即树皮开始转红褐色、芽眼饱满的幼枝,随采随用。单芽切接方法:在砧木剪顶横断面先斜削一刀,呈一斜面,然后在斜面低的一边形 First, the test materials and methods: 1986 and 1987 March-May, respectively, we Lai Cheung Township Xiangling Village, Zhangpu Village, Creek Po Tsuen longan nursery, with a diameter of 0.5 cm (10 cm above the ground at the ground) The above seedlings, single-splicing test. Grafting according to the growth of rootstocks, choose from the ground 10-25 cm bark relatively smooth cut anvil; scion selection of elite tree branches annual tree branches, that is, the bark began to turn reddish brown, bud full young branches, with the mining With use. Cut a single bud method: the first cross-cut rootstock cutting bevel knife, was a bevel, and then in the lower bevel slope