板栗大龄树反向嫁接试验  

Experiment on Reverse Grafting of Aged Castanea mollissima

作　　者：季志平[1] 吕平会[1] 何佳林[1] 李潇雨 JI Zhi-ping;LYU Ping-hui;HE Jia-lin;LI Xiao-yu(College of Forestry,Northwest Agricultural and Forestry University,Yangling 712100,China)

机构地区：[1]西北农林科技大学林学院,陕西杨凌712100

出　　处：《黑龙江农业科学》2020年第2期78-80,共3页Heilongjiang Agricultural Sciences

基　　金：西北农林科技大学试验示范站科技创新与成果转化项目([2019]26号)。

摘　　要：板栗是一种具有明显结果外移特性的树种,大龄板栗树的结果外移现象尤其严重。为克服板栗结果外移,采用1997年前后种植的板栗作为砧木,以审定品种新早栗和秦栗2号为接穗,进行了板栗大龄反向嫁接试验。结果表明:凡士林和玻璃胶可以作为反向嫁接接口愈合剂;将接穗反向嫁接在主干两侧,且保留剪口下第一个背上芽,有利于新稍发育和枝条均匀分布;反向嫁接枝条的基角、腰角极显著大于正向嫁接,并能形成树冠开张、枝条分布均匀、树势缓和的高产树形。Castanea mollissima is a tree species with obvious outward migration of nut fruits,especially in aged chestnut trees.In order to overcome the outmigration of Castanea mollissima fruit,the Castanea mollissima planted before and after 1997 was used as rootstock,and the approved varieties Xinzaoli and Qinli No.2 were used as scions,the reverse grafting experiment of Castanea mollissima was carried out.The results showed that vaseline and glass gum could be used as healing agents for reverse grafting interface;Scions were grafted in reverse on both sides of the trunk,and retaining the first dorsal bud under the scissors,that was beneficial to new slight development and even distribution of branches;The base angle and waist angle of reverse grafting were significantly larger than that of forward grafting,and could form a high-yield tree shape with open crown,uniform distribution of branches and moderate tree vigor.

关 键 词：板栗 反向嫁接 大龄树 

分 类 号：S66[农业科学—果树学]