母树种源与砧木地径对青钱柳嫁接成活率及嫁接苗生长的影响  

Effects of mother tree provenance and rootstock ground diameter on grafting survival rate and grafting seedling growth of Cyclocarya paliurus

作　　者：李贵[1] 陈瑞[1] 刘振华[1] 吴敏[1] 童琪 陈清新 杨艳晖 彭祖武 童方平[1] LI Gui;CHEN Rui;LIU Zhenhua;WU Min;TONG Qi;CHEN Qingxin;YANG Yanhui;PENG Zuwu;TONG Fangping(Hunan Academy of Forestry,Changsha 410004,Hunan,China;Forestry Science Institute of Chengbu County,Chengbu 422501,Hunan,China;Guizhou Botanical Garden,Guiyang 550004,Guizhou,China)

机构地区：[1]湖南省林业科学院,湖南长沙410004 [2]城步苗族自治县林业科学研究所,湖南城步422501 [3]贵州省植物园,贵州贵阳550004

出　　处：《湖南林业科技》2023年第2期20-25,共6页Hunan Forestry Science & Technology

基　　金：湖南省林业科技攻关与创新项目(XLKY202311);湖南省林业局省级林草种苗繁育项目“青钱柳优良种质资源收集、繁育与种质评价”。

摘　　要：以湖南省石门县、江华县、双牌县以及江西省修水县、庐山等5地的青钱柳大树或古树为嫁接穗条采集母树,以2年生青钱柳实生苗为砧木,研究母树种源、砧木地径对青钱柳嫁接成活率及嫁接苗生长的影响。结果表明:不同种源青钱柳嫁接成活率大小排序为双牌的﹥修水的﹥江华的﹥庐山的﹥石门的,其中石门种源的最小,为48.69%;双牌种源的最大,达65.23%。嫁接苗的新梢基径、新梢长、新梢节数与砧木地径有一定的相关性,其相关系数分别为0.772、0.457、0.422,其大小排序为新梢基径的﹥新梢长的﹥新梢节数的;嫁接苗的新梢基径、新梢长、新梢节数与母树的年龄、胸径、树高及枝下高均不存在明显的相关性。说明青钱柳嫁接对砧木地径有一定的要求,实际生产中应选择适宜粗度的砧木进行嫁接;母树的年龄对嫁接苗的生长没有显著影响。In this study,the Cyclocarya paliurus big trees or old trees from Shimen County,Jianghua County,Shuangpai County in Hunan Province,and Xiushui County,Lushan City in Jiangxi Province were used as grafting scions to collected mother trees,and the two-year-old seedlings of C.paliurus were used as rootstocks to study the effects of mother tree provenance and rootstock ground diameter on the grafting survival rate and grafting seedling growth of C.paliurus.The results showed that the order of grafting survival rate of C.paliurus from different provenances was Shuangpai provenance>Xiushui provenance>Jianghua provenance>Lushan provenance>Shimen provenance.The lowest grafting survival rate was Shimen provenance was 48.69%.while the highest survival rate was Shuangpai provenance reached 65.23%.There was a certain correlation between the ground diameter,seedling height,node number of grafted seedlings and the ground diameter of rootstock,and the correlation coefficients were 0.772,0.457 and 0.422,respectively.The order was ground diameter>seedling height>node number.There was no significant correlation between the ground diameter,seedling height,node number of grafted seedlings and the age,DBH,tree height,branch height of the mother tree.The experimental showed that the grafting of C.paliurus had certain requirements on the rootstock ground diameter.In actual production,seedlings with an appropriate roughness should be selected as rootstocks,while the age of the mother tree had no significant effect on growth of grafted seedlings.

关 键 词：青钱柳 嫁接 母树种源 砧木地径 

分 类 号：S792.99[农业科学—林木遗传育种] S722[农业科学—林学]