论文部分内容阅读
嫩枝扦插也称软枝扦插、绿枝扦插,嫩枝扦插枝条处于半木质化状态,比较幼嫩,薄壁细胞较多且枝条内含有较多水份及可溶性的有机构,细胞的分裂、分化能力强,顶芽和叶子有合成生长素与生根素的作用,可促进生成愈伤组织和生根,容易成活。嫩枝扦插是一种苗木繁殖的好方法,生产上如桧柏、杨树、黄杨、女贞、银杏等许多树木都可以通过嫩枝扦插来繁育苗木。但是,由于扦插时气温高,光照强,温度和湿度不好掌握,如果技术操作不当,容易造成扦插育苗失败,所以嫩枝扦插育苗,应当注意以下几个技术要点：
Softwood cutting also known as soft-cuttings, green branch cuttings, shoots softwood cuttings in a semi-lignified state, relatively young, more parenchyma cells and branches contain more water and soluble organisms, cell division, Strong differentiation, top buds and leaves have the role of synthetic auxin and rooting hormone, can promote the generation of callus and rooting, easy to survive. Softwood cutting is a good way to seedling reproduction, production, such as juniper cypress, poplar, boxwood, privet, ginkgo and many other trees can be cuttings to breed nursery stock. However, due to the high temperature when cutting, light intensity, temperature and humidity is not good to master, if the improper operation of technology, easy to cause failure of cutting propagation, so shoot cutting propagation, should pay attention to the following technical points: