十二种砧木根皮率、枝皮率与嫁接树生长势的相关性  

Correlation Between Root Bark Ratio,Branch Cortex Ratio and Growth Vigor of Grafted Trees of Twelve Apple Rootstocks

作　　者：赵国栋[1] 贾林光 杨凤秋[1] 陈东玫[1] 张新生[1] 赵同生[1] ZHAO Guodong;JIA Linguang;YANG Fengqiu;CHEN Dongmei;ZHANG Xinsheng;ZHAO Tongsheng(Changli Institute of Pomology,Hebei Academy of Agriculture and Forestry Sciences,Changli,Hebei 066600)

机构地区：[1]河北省农林科学院昌黎果树研究所,河北昌黎066600

出　　处：《北方园艺》2020年第18期13-17,共5页Northern Horticulture

基　　金：国家现代农业产业技术体系建设专项资金资助项目(CARS-27);河北省农林科学院科学技术研究与发展计划资助项目(2018020103);河北省农业关键共性技术攻关专项资助项目(18226353)。

摘　　要：以12种果树砧木为试材,利用12种砧木进行根皮率、枝皮率与其嫁接树生长势的相关性研究,以期为矮化砧木早期鉴定的预选指标筛选提供参考依据。结果表明:根皮率与根系粗度呈显著负相关,枝皮率与枝条粗度呈显著负相关;2~9 mm根系的根皮率与嫁接树树高呈极显著负相关,2~6 mm根系的根皮率与树干横截面积呈极显著负相关,砧木枝条枝皮率与嫁接树生长势呈负相关,但相关性不显著。聚类分析认为,利用根皮率和嫁接树生长势对砧木进行评价结果一致性好,利用根皮率预测嫁接树生长势的最适根粗范围为5~7 mm。Twelve rootstocks were taken as materials,to provide a reference for screening of dwarfing rootstcks during early stage,12 rootstocks and their grafted trees were used to study the correlation between root bark ratio,branch cortex ratio and tree growth vigor.The results showed that root bark ratio was negatively correlated with root diameter,branch cortex ratio was negatively correlated with branch diameter. Root bark ratio of roots( 2-9 mm) had highly significant negative correlation with height of grafted trees( TH),root bark ratio of roots( 2-6 mm) had highly significant negative correlation with cross sectional area of grafted tree( TCA).Branch cortex ratio had no significant correlation with TH and TCA of grafted tree. Cluster analysis showed that classification results of 12 rootstocks based on root bark ratio were consistent with that of growth vigor of grafted trees,the optimum root diameters for predicting the growth vigor of grafted tree were 5-7 mm.

关 键 词：砧木 嫁接树 根皮率 枝皮率 生长势 相关性 

分 类 号：S661.1[农业科学—果树学]