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引言海南岛热带树种资源丰富,各树种特性不同,苗木生长速度差异极大。了解苗木生长速度,掌握苗木生长规律,可为苗期试验,决定造林苗木的播种季节等提供依据。笔者于1963—1965年、1973—1983年在海南岛尖峰岭热林所苗圃进行苗木生长规律研究。共作了69个树种299种次的苗木生长过程观察,取得了25万多个观察数据,初步掌握了热带树种苗木生长规律,现将资料整理如下。一、研究材料和方法研究所用苗木均为用种子繁殖的裸根实生苗。所用种子大部分采自海南岛尖峰龄、坝王岭和吊罗山等三大林区以及屯昌县、崖
Introduction Tropical Hainan Island species rich in resources, different characteristics of the species, the growth rate of seedlings vary greatly. Understand the growth rate of seedlings, grasp the law of growth of seedlings, for seedling test, determine the sowing season of afforestation provide the basis. The author in 1963-1965, 1973-1983 in Hainan Island Jianfengling hot forest nursery for seedling growth law. A total of 69 tree species were 299 species of seedlings observed the growth process, obtained more than 250,000 observations, initially mastered the tropical tree seedling growth rules, the data are summarized below. First, the research materials and methods used in seedling nursery stock breeding are naked root seedlings. Most of the seeds are collected from the peak age of Hainan Island, Dam Wang Ling and Diaoluoshan three major forest and Tunchang County, Cliff