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嫁接是林木进行无性繁殖的有效措施之一.用嫁接手段营建杉木优村收集区、采穗圃和种子园,是促进优树开花结实,开展杉木良种选育的一条重要途径.而嫁接成活的基本原理是接穗与砧水削面的形成层细胞能分裂产生疏松的愈伤组织,并能相互作用、密切结合、愈合成新的植株.因此,促进接穗与砧木削面的形成层间的愈合,就成为影响嫁接成活的关键因素.为了进一步提高杉木嫁接成活率,深入进行杉本良种繁育研究,我们特试用硫胺素(V_(B1))和生长索(萘乙酸)混合液处理杉木接穗和砧木的削面,以探讨其提高杉木嫁接成活率的效应.现将四年来的试验结果初报如下:
Grafting is one of the effective measures for asexual reproduction of forest trees.It is an important way to promote the flowering and fruiting of elite trees and to carry out the breeding of Chinese fir seed by establishing the collection area, The basic principle is that the formation layer of scions and anvil water-cut surface cells can be split to produce loose callus, and can interact with each other to form a new plant. Therefore, Which is the key factor to affect the survival of grafting.In order to further improve the survival rate of grafted cunninghamia and further research on the breeding of Cunninghamia lanceolata, we specially treated the scion and rootstock of Chinese fir with the mixture of thiamine (V_ (B1)) and growth cord (naphthaleneacetic acid) Noodles, to explore the effect of improving the survival rate of Chinese fir grafting now test results for the first time in four years are as follows: