马尾松扦插苗生长规律的初步研究

Preliminary Studies on Growth Pattern of the Cuttage Stock of Pinus massoniana

对马尾松无性系及家系扦插苗的生长进行观测研究结果表明：水培根系生长良好，侧根多且壮，须根 发达；春插１年生无性系扦插苗的主梢生长量只出现一个峰期（３～４月），下半年生长速率占全年生长速率的 ８５．９％，不同无性系扦插苗生长速率的快慢有差异；高产脂家系春插成活率比秋插高，在３０％～９５％之间，苗 高和地径生长为２１．１ｃｍ和 ０．４ｃｍ，分别是秋插的 ２．１１倍和 １．２９倍。

Determination was done on the growth of cuttage stock of Pinus massoniana. The results showed that the stock cultured in water had fine root system;Growth of main top of its one-year-old spring cuttage stock had only one peak period;Growth rate of the stocks had variation among the clones,Survival rate of the spring cuttage stocks of the family with a high yield of resin was higher than that of the autum cuttage stocks.