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1965年8月至1966年7月,我们结合营林生产中试种一些珍贵用材树种时发现有的树种造林成活率低或旱季保存率低;有的树种有严重“蹲苗”现象等问题,曾对海南八种树苗的根系生长进行了观测。目的在于了解它们的根系生长规律及其地上、地下部分关系,为育苗、造林采取适当措施,以提高造林成活率或保存率,促进幼林生长提供参考依据。现将所获得的主要资料整理报导如下。(有关母生苗木根系生长的主要资料请参看《热带林业科技》1973年第1期“母生培育技术的研究初报”一文,本文不重述)。
From August 1965 to July 1966, we found some tree species with low survival rate or low preservation rate in the dry season when we tried to plant some precious timber species in the forest production. Some species had serious problems such as “squatting and seedling” The root growth of eight saplings in Hainan was observed. The purpose is to understand their root growth and the relationship between the aboveground and underground parts, take appropriate measures for nursery and afforestation, and provide reference for improving afforestation survival rate or preservation rate and promoting young forest growth. The main information obtained now is as follows. (The main information on the growth of the roots of the mother seedlings, see “tropical forestry science and technology” 1973 the first period of “mother’s breeding technology research report” article, this article does not restate).