杉木不同接穗类型对嫁接愈合程度及接穗生长的影响

Effects of Different Scion Grafting on Healing Rate and Scion Growth of Chinese Fir

通过研究不同接穗类型对杉木嫁接愈合度及穗条生长的影响,为杉木种子园嫁接提供技术参考。结果表明:杉木嫁接平均成活率为90.78%,其中,顶芽嫁接成活率(93.11%)高于侧芽嫁接(88.44%),不同接穗类型对嫁接成活率具有显著影响。不同无性系嫁接对愈合度没有显著影响,而对接穗生长量具有极显著影响。不同接穗类型对愈合度及穗高生长均有极显著影响,顶芽嫁接的愈合度及接穗生长量均比侧芽嫁接表现好。愈合度对接穗生长具有极显著影响,完全愈合生长最好,且与愈合1/2及愈合1/3之间的差异显著;但愈合1/2与愈合1/3之间的差异不显著。愈合度与接穗生长量具有显著的曲线回归关系。

We studied the effects of different scion grafting on the healing rate and scion growth of Chinese fir to provide technical reference for grafting Chinese fir in seed orchard.Results showed that the average graft survival rate was 90.78%,with top-bud(93.11%)and lateral-bud(88.44%).Different scion grafting had significant impacts on grafting survival rate.Different clones grafting had no significant effect on healing rate,but showed extremely significant effect on scion growth.Different scion grafting significantly affected healing rate and scion growth,with better performance on top-bud than on lateral-bud.Healing rate had a significant effect on scion growth.Scions grew well after healing completely,but obviously not so well with 1/2 healing and 1/3 healing;there was no obvious difference in scions between 1/2 healing and 1/3 healing.The curve regression relationship between healing degree and scion growth was significant.