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营养体的繁殖是扩大种源、较完正的保留母体基因型特性的较好手段。也是扩大种源,营造无性系速生丰产人工林的可靠途径。林木营养体繁殖最经济的方法之一是扦插;对于扦插来说能否形成新的植株,关键在于能否形成不定根系。为此,从1980～1981年度我们对林木不定根形成与叶相关性,进行了如下几个试验,现将情况报告如下: 一、休眠末期枝条不定根形成的试验 (一) 试验材料和方法: 采集我所自行培育的九年生杂交品种河北毛白杨休眠枝作为材料,此材料来自同一无性
Nutritional reproduction is to expand the provenance, a more complete retention of maternal genotype characteristics of a better means. It is also a reliable way to expand provenance and create a climatic fast-growing and high-yield plantation. One of the most economical ways to propagate forest nutrient body is cuttings. The key to the formation of new plants for cuttings lies in whether adventitious roots can be formed. To this end, from 1980 to 1981 we adventitious roots formation and leaf correlation with the leaves, the following several tests, the situation is reported as follows: First, end of dormant adventitious root formation test (a) test materials and methods: collecting me The nine-year hybrid cultivar Hebei Populus dormant branch as a material, this material from the same asexual