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为迅速改变繁育湿地松、火炬松依赖进口种子的局面,近几年来,我场进行嫩枝扦插育苗试验,已取得良好结果.经过几年的摸索,基本掌握了插穗年龄越小,生根能力越强,以及扦插育苗与光照、水份、温度、湿度等诸因子的相关规律.1983年秋扦插22.606株,当年成苗14.470株,成苗率达64%(其余在第二年陆续生根).1984年 7月移到林地栽植,成活率达90%以上.1984年在本场和方山林场两地育苗,平山林场扦插38.600株,成活率亦达86.3%.材料和方法(一)采取插穗当湿地松、火炬松苗侧枝长度在8厘米以上,并达半木质化时.即一手推苗,一手捏住侧枝基部,轻轻撕下侧枝作插穗(基部略带枝叉),并随即置盛水的容器内,以供扦插.
In order to rapidly change the situation of breeding slash pine and loblolly pine dependent on imported seeds, in recent years, we have carried out the test of tender cutting propagation and achieved good results. After several years of exploration, we have basically mastered the smaller age of cuttings and the ability of rooting Strong, and cuttings nursery and light, moisture, temperature, humidity and other factors related to the law .228.06 cuttings in autumn 1983, when 14.470 seedlings, seedling rate of 64% (the rest of the root in succession in the second year.) 1984 In July of this year, it was planted in a forestland and its survival rate was over 90% .In 1984, 38.600 strains of cuttings were planted in Pingshan Forest Farm in both the field and Fangshan Forest Farm, with a survival rate of 86.3%. Materials and Methods Slash pine, loblolly pine seedlings side branches in the length of 8 cm or more, and up to half of the lignified, that single-hand seedlings, one hand pinch the base of the branch, gently peel off the side branches for cuttings (base slightly branched), and then set Sheng water Container for cutting.