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柳树很容易进行扦插繁殖,在系统发育过程中,长期生长在水湿的条件下,为适应水湿的生态环境,茎部皮孔发达,并具有根原始体构造,当茎部被水淹没后,根原始体突破皮孔而长成不定根。利用柳树这一特性进行水插繁殖,可以在短时期内得到大量苗木。我们在柳树育种研究中为了加速优良无性系繁殖,于1979—1980年进行了水插繁殖试验,现将试验结果进行初步分析和总结。 一、不同柳树的根原始体和水插生根能力 柳树插条生根有二种形式:一种是由
Willow is very easy to cutting propagation, in the process of phylogeny, long-term growth in the water wet conditions, in order to adapt to the water wet ecological environment, the stem of the skin hole developed, and has a primitive primitive structure, when the stem is submerged The root primordium breaks through the lenticum and grows into adventitious roots. The use of this feature of willow water propagation, you can get a large number of seedlings in a short period of time. In order to accelerate the propagation of excellent clones in the willow breeding research, we carried out the water plug propagation experiment from 1979 to 1980, and the preliminary analysis and summary of the test results are given. First, the different willow root primordial and water adventitious root Willow cuttings rooting in two forms: one is from