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有的植物根、茎、叶部位,扦插后都很容易发根。有的植物虽不易发根,但把插穗基部浸在一定浓度的生长素溶液中浸泡一段时间后,就能提高发根率。也有一些植物虽使用生长素处理,发根率亦很低,这是什么原因呢? 科学研究的结果证明,促使扦插枝条产生不定根的物质就是生长素。芽中产生的生长素在枝条基部积累,活化了形成层,促使根原基形成并长出不定根。有的植物扦插后很难生长,可能是由于它本身存在着某种抑制生根的物质。另一方面,也可能是插枝内部营养物质的积累不能满足发根的需要。因此,提高插枝内营
Some plant roots, stems, leaves parts, cutting is very easy to root. Although some plants are not easy to hair roots, but the base of the cuttings immersed in a certain concentration of auxin solution soak for a period of time, you can increase the rate of hair roots. There are also some plants, although the use of auxin treatment, hair rooting rate is also very low, what is the reason? The results of scientific research to prove that to promote cutting stems adventitious root material is auxin. Auxin produced in the bud accumulates at the base of shoots, activating the cambium, promoting the formation of root primordium and growing adventitious roots. Some plants after cutting hard to grow, probably because of its existence there is some kind of material to inhibit rooting. On the other hand, it is also possible that the accumulation of nutrients inside cuttings can not meet the needs of hair roots. Therefore, improve the camp