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湿地松是30年代从美国引进的优良树种,具有生长快,适应性强,病虫害少,材质好的优点,广为群众喜爱。70年代已发展成为我省丘陵荒山造林绿化的好树种。目前种子靠进口,价格昂贵,数量有限;同时用种子繁殖成本高,发病率高,苗木数量受制约,实生苗后代造林分化也大。为了探索扩大湿地松繁殖指数的新途径,我们从1978年起,进行了土砂床扦插湿地松叶束培育苗木的研究,经过几年的反
Slash pine is introduced from the United States in the 30’s fine tree species, with fast growth, adaptability, fewer pests and diseases, the advantages of good material, widely loved by the masses. In the 1970s, it has developed into a good tree species afforestation in the hills and hills in the province. At present the seeds rely on imports, the price is very limited and the quantity is limited. In the meantime, the cost of breeding seed is high, the incidence rate is high, the quantity of seedlings is restricted, and the offspring of offspring of seedlings are also large in differentiation. In order to explore a new way to expand the reproductive index of Pinus elliottii, we started from 1978 on the soil sand cuttings of Pinus elliottii seedling nursery research, after several years of anti-