1985年我们在池杉营养期进行连续多次扦插育苗的同时,用池杉促萌嫩枝进行超短枝扦插,扦插成活率达93%,该法比常规扦插繁殖效率提高了四倍左右。一、试验材料试验材料为池杉采穗圃1、2、3、4年生母株的促葫嫩枝。根据历次扦插试验,采集长约15—35厘米,粗约0.3—0.7厘米,日龄25—60天,生长正常,呈半木质化的嫩枝。 In 1985, we conducted continuous cuttings nursery in the vegetative period of Ipomoea batungensis. Meanwhile, the survival rate of cuttings reached 93% with the use of Ipomoea batanus to promote shoot growth. The efficiency of this method was increased about four times than that of conventional cutting propagation. First, the test material Test materials for Ipomoea spruce garden 1, 2, 3, 4-year-old mother plant promulgation of gynostemma. According to the previous cutting test, collected about 15-35 cm, about 0.3-0.7 cm thick, day-old 25-60 days, normal growth, was half-lignified shoots.