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中国林科院亚热带林业研究所马尾松组,从1988年开始对马尾松扦插繁殖进行了一系列试验研究。4年之中,应用扦插穗条近万株,先后进行了以下各项试验:①采穗母树年龄比较试验:从1～7年生母树上采下的穗条,除7年生的以外,其余各树龄穗条均有扦插生根成活的苗木。一般树龄越大生根成活率越低,树龄越小生根成活率越高,但树龄小繁殖指数也小。试验考虑到成活率与繁殖指数两方面的因素,选择采穗母树最佳年龄。②扦插基质的比较试验:利用河沙、蛭石、糠灰、松林上、圃地土、阔叶林腐殖土以及用几种
Chinese Academy of Forestry Subtropical Forestry Research Institute Masson pine group, from 1988 on the Masson pine cutting propagation conducted a series of experimental studies. Four years, the use of cuttings nearly ten thousand strains, has carried out the following tests: ¢ Úcertus mother tree age comparison test: from 1-7 years old mother tree mining cuttings, with the exception of 7-year-old, the other Aging cuttings are cutting rooting alive seedlings. The higher the general age, the lower the survival rate of rooting, the younger the higher the root survival rate, but the age of small reproductive index is also small. Taking into account the survival rate and reproductive index of two factors, choose the best age of spike mother tree. ② cutting matrix comparative test: the use of sand, vermiculite, chaff, pine forest, garden soil, broad-leaved forest humus and the use of several