不同树龄楸树种质资源的嫁接成活影响因素  

Factors Affecting Grafting Survival of Catalpa bungei Germplasm Resources at Different Ages

作　　者：辛建华 许庆标 刘建军 李建新 李莹 郁国强 楚克欢 鲁仪增 孙涛 张连合 张学勇 张现祥 贺燕 XIN Jianhua;XU Qingbiao;LIU Jianjun;LI Jianxin;LI Ying;YU Guoqiang;CHU Kehuan;LU Yizeng;SUN Tao;ZHANG Lianhe;ZHANG Xueyong;ZHANG Xianxiang;HE Yan(Heze Forestry Bureau,Heze Shandong 274000;Shantung Maple Engineering and Technology Research Center of National Forestry and Grassland,Shandong Provincial Center of Forest and Grass Germplasm Resources,Ji,nan Shandong,250002;State owned Baifu forest farm of Chengwu County,Chengwu Shandong 274000;Landscaping Service Center of Jinan Shizhong District,Jinan Shandong 250102)

机构地区：[1]菏泽市林业局,山东菏泽274000 [2]国家林业草原元宝枫工程技术研究中心山东省林草种质资源中心,山东济南250102 [3]成武县国有白浮林场,山东成武274000 [4]济南市市中区园林绿化服务中心,山东济南250002

出　　处：《山东林业科技》2021年第4期71-74,共4页Journal of Shandong Forestry Science and Technology

基　　金：山东省农业良种工程项目“珍贵用材树种种质资源收集保存与精准鉴定”课题(2019LZGC01804);泉城“5150”引才倍增计划创新人才(团队)项目“梓属树种种质资源收集及繁育研究”;山东省林业科技创新项目“栎属、梓属等乡土树种种质资源收集评价及利用研究”(LYCX01-2018-01);中央财政林业改革发展资金项目“楸树良种繁育及栽培技术推广”(鲁[2018]TG13号)。

摘　　要：为高效繁育保存楸树优树和古树种质资源,对来自4省22地市楸树母树的接穗嫁接成活率进行系统调查分析。研究表明,楸树优树和古树种质资源的平均嫁接成活率为30.4%,相应嫁接成活率均与其树龄和胸径呈极显著负相关,楸树接穗的年龄效应十分明显。在开展其种质资源收集保存时,应尽可能采集基部萌条。In order to efficiently breed and preserve the germplasm resources of superior trees and ancient trees of Catalpa bungei,the survival rate of scion grafting of C.bungei from 22 cities in 4 provinces was systematically investigated and analyzed.The results showed that the average grafting survival rate of superior tree and ancient tree germplasm resources of C.bungei was 30.4%,and the corresponding grafting survival rate was negatively correlated with tree age and DBH,and the age effect of scion of C.bungei was very obvious.In the collection and preservation of germplasm resources,we should collect the basal sprouts of C.bungei as much as possible.

关 键 词：楸树 树龄 嫁接成活率 

分 类 号：S792.99[农业科学—林木遗传育种]