油茶低产林高接技术试验研究

ToP Grafting Technique in Low-yield stands of camellia oleifera

摘要:

为研发适宜湖北地区的油茶高接换冠技术,为油茶低产林改造提供技术支撑,以约 40a生实生油茶大树为砧木, 采用四因素三水平九处理正交试验设计和撕皮接法,研究不同嫁接时间、不同嫁接部位、不同遮荫情况及不同嫁接品种对 高接成活率的影响。 结果表明:影响高接成活率因素的主次顺序为:嫁接时间>嫁接部位>遮荫情况>嫁接品种,嫁接因 素最优水平分别为:6月下旬,在油茶树主干下部采用方块芽接法,对嫁接部位打灯笼罩,树体不遮荫,采用长林 4号高接成 活率可达到 85. 83%以上。

Abstract:

In order to provide technical support For transFormation oFCamellia oleifera low-yield Forest For research and development oFtop graFting and changing crown technique in Hubei province . The study methods were Four Factors three levels nine treatment orthogonal test design and inlaying graFting. we explored the eFFects oFdiFFerent graFting times , graFting positions , shading situations , scion varieties on the survival rate oF40-year-old C. oleifera seed-trees . The results showed that primary and secondary Factors oFaFFecting the high survival rate were:graFting time> graFting position> shading> graFting varieties . The combination was the optimal levels oFgraFting Factors which oFthe graFting time was in late June, the graFting position was in the bottom oFthe trunKoFC. oleifera , the shading was the graFting part oFthe lan- tern cover and the tree body does not shade , the graFting varieties was changlin 4th. The survival rate could reach more than 85. 83% .