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水杉是我国特有的珍贵树种。具有生长迅速,树干通直,材质较好,树形美观,树冠较窄,病虫害少等特点,在我省引种栽培生长良好。但以往由于育苗技术尚未过关,影响了扩大栽培。自一九七四年以来,根据省农林局的指示,我们结合生产,开展了扦插育苗试验。 现根据试验结果将扦播育苗中影响成活率的几个主要问题分述如下: 一、母树年龄对插穗生根,成活率的影响 插穗母树年龄的大小对插穗的生根成活率影响较大,用1～2年生母树侧枝作插穗,进行试验,调查结果如表一。
Metasequoia is endemic to our precious species. With rapid growth, straight trunk, good material, beautiful tree, narrow canopy, fewer pests and other characteristics, the introduction of cultivation in our province grow well. However, in the past, because seedling technology has not yet been passed, affecting the expansion of cultivation. Since 1974, in accordance with the instructions of the Provincial Department of Agriculture and Forestry, we have combined the production with the cutting seedling experiment. Now according to the results of the experiment will cuttings sowing affect the survival rate of several major problems are described as follows: First, the age of the parent tree on the cuttings rooting, survival rate of cuttings parent tree size of cuttings rooting survival rate greater impact, with 1 ~ 2-year-old tree branches for cuttings, the test, the survey results in Table 1.