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水杉是我国特有的珍贵树种,它生长迅速,能耐水湿,病虫害少,树形美观,材质好,群众喜爱栽植。但目前由于水杉母树少,种源困难,主要是用扦插的方法繁殖。1973年,我们除在春、夏两季扦插水杉外,还进行了秋季扦插试验,结果成活率在95%以上,比春插夏插都高,翌年三月移植后,成苗率93.7%,生长特别旺盛。根据不同时期的扦插试验,我们认为最适宜的扦插时间是八月中旬至九月下旬。过早,由于气温高和新枝幼嫩,不易于生根成活;过迟,由于气温低,也不易于生根。所用插穗,从一年生水杉树苗上
Metasequoia is endemic to China precious tree species, it grows rapidly, water-resistant, less pests, beautiful tree, good material, the masses like to plant. However, due to the lack of female parent tree, provenance is difficult, mainly by the method of cutting propagation. In 1973, we cuttings except Metasequoia in spring and summer, but also carried out the autumn cuttage test, the results of the survival rate of 95% or more than the spring inserted summer are high in March the following year after transplantation, the seedling rate of 93.7% Particularly strong growth. According to different periods of cutting experiments, we believe that the most appropriate cutting time is from mid August to late September. Premature, due to high temperatures and new branches tender, not easy to survive; too late, because the temperature is low, it is not easy to take root. Cuttings used, from the annual tree seedlings of Metasequoia