插条可取自选出的优树和经过控制授粉而产生的实生苗。在成年的树干茎部15—20厘米高处进行环剥,可以得到大量萌生枝条。当枝条达到半木质化程度时,在第4—5个节间以上截取的插条生根能力显著下降或根本不生根。在6个月左右的实生苗上,紧贴瘤表面截取插条,生根率可达100％。插条要求长10—15厘米,顶端留叶1—2片。将插条插入盛有消过毒的细砂,蛭石或珍珠 The cuttings can be derived from the selected elite trees and from the seedlings produced by controlled pollination. Girdling 15-20 cm above the stem of an adult trunk gives a large number of sprouting branches. When the shoots reached a semi-lignified degree, the cuttings rooted above the 4-5th internode significantly decreased or did not root at all. In about 6 months on the seedlings, close to the tumor surface interception cuttings, rooting rate of up to 100%. Cuttings require length 10-15 cm, leaves the top 1-2 leaves. Insert cuttings into sterile sand, vermiculite or pearl