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通过杜仲的扦插繁殖试验,结果认为:在北京地区最适宜的扦插期是5月下旬至7月中旬;成年树插穗的成活率很低,一般在20%以下,2年生幼树插穗成话率可达60%;外源生长素对诱发插穗不定根生长效果显著,其中NAA50μg/mL处理20年生成树的当年生枝条,最高成活率可达68%,根系生长茂密。
Through the cutting propagation test of Eucommia ulmoides, the results suggest that the most suitable cutting period in Beijing is from late May to mid-July; the survival rate of adult tree cuttings is very low, generally below 20%, and the 2 year old sapling cutting rate Up to 60%; exogenous auxin has an obvious effect on the growth of adventitious roots induced by cuttings. NAA50μg/mL treats the current year’s shoots of the tree for 20 years. The highest survival rate is up to 68%, and the roots grow densely.