不同嫁接高度对薄壳山核桃实生大树高接成活及生长影响  

Effects of Different Height Grafting on the Survival and Growth of Seedling Tree in Carya illinoensis

作　　者：杜洋文 邓先珍[1,2,3] Du Yangwen;Deng Xianzhen(Hubei Key Laboratory of Economic Forest Germplasm Improvement and Resources Comprehensive Utilization,Wuhan 430075;Hubei Academy of Forestry,Wuhan 430075;Hubei Provincial Engineering Technology Research Center of Woody Oil-Bearing Forest,Wuhan 430075)

机构地区：[1]经济林木种质改良与资源综合利用湖北省重点实验室,武汉430075 [2]湖北省林业科学研究院,武汉430075 [3]湖北省木本粮油林工程技术研究中心,武汉430075

出　　处：《湖北林业科技》2020年第5期13-16,共4页Hubei Forestry Science and Technology

基　　金：中央财政林业科技推广示范资金项目:长山核桃规模化繁育与高效栽培应用示范(鄂[2019]TG12)。

摘　　要：以4~8 cm径粗的实生大树为砧木,开展砧木高度分别为40、60、80、100 cm处理的高接试验,探讨实生大树不同高度嫁接对成活率及新梢生长影响。结果表明:不同处理间砧木地径和砧木嫁接口粗度存在极显著差异;不同处理对高接成活率影响存在极显著差异,以砧木嫁接高度80 cm和60 cm处理成活率较高,分别为83.18%和77.57%;不同处理对嫁接成活后1 a生枝条长度和地径生长影响无显著差异,枝条长度达到69.31~120.55 cm,粗度达到7.55~22.48 mm。Taking 4~8 cm diameter seedling trees as rootstock,to carry out the top grafting with rootstock height of 40 cm、60cm、80cm and 100 cm,respectively,investigating the effect of different height grafting on survival rate and shoot growth of tree.The results showed:There were significant differences in ground diameter and thickness of rootstock grafting between different treatments;The effect of different treatments on the survival rate of top grafting was very significant,the survival rate of rootstock grafting 80cm and 60cm was 83.18%and 77.57%respectively;There was no significant difference in the growth of annual branch length and ground diameter after grafting,the length of branches reached 69.31~120.55 cm,and the thickness reached 7.55~22.48 mm.

关 键 词：薄壳山核桃 嫁接 成活率 生长 

分 类 号：S66[农业科学—果树学]