摘要
为探寻油茶高接换种的适宜时间及品种,以‘长林3号’‘长林4号’‘长林18号’‘长林40号’和‘长林53号’为接穗,采用劈接法在2月中下旬和3月中旬进行油茶高接换种,比较分析了不同时间不同品种高接成活率,第1、2年新梢长度和冠幅面积差异。结果表明:长林系列几个参试品种均适宜在2月中下旬高接,成活率分别为71.62%、82.53%、64.73%、92.60%和83.03%;高接第1年新梢长度以‘长林40号’最大,第2年以‘长林53号’和‘长林40号’最大;高接第1年冠幅面积以‘长林4号’最大,第2年以‘长林53号’最大。综合可知,长林系列品种在2月中下旬高接成活率最高,‘长林53号’第2年新梢及冠幅生长量最大。
To explore the optimal time for crown grafting of Camellia oleifera,the scions were one-year-old branches of‘changlin3’,‘changlin4’,‘changlin18’,‘changlin40’and‘changlin53’.The method of cleft grafting was employed to perform crown grafting in mid-to-late February and mid-March.The study compared and analyzed the survival rates of different varieties,as well as the differences in young shoot length and canopy area in the first and second years.The results showed that‘changlin3’,‘changlin4’,‘changlin18’,‘changlin40’and‘changlin53’were all suitable for crown grafting in mid-to-late February,with survival rates of 71.62%,82.53%,64.73%,92.60%,and 83.03%,respectively.In the first year after crown grafting,the maximum young shoot length was observed in‘changlin40’,followed by‘changlin40’and‘changlin53’in the second year.In terms of canopy area in the first year,‘changlin40’had the largest increase,while‘changlin53’saw the greatest growth in the second year.Overall,these varieties had the highest survival rate when grafted in mid-to-late February,and‘changlin53’exhibited the greatest growth in young shoots and canopy area in the second year.
作者
丁志刚
曹永庆
雷学志
肖新意
邹英武
杜洋文
Ding Zhigang;Cao Yongqing;Lei Xuezhi;Xiao Xinyi;Zou Yingwu;Du Yangwen(Wunaoshan Forest Farm of Macheng City,Macheng 438300;Research Institute of Subtropical Forestry,Chinese Academy of Forestry,Hangzhou 311400;Macheng Forestry Bureau,Macheng 438300;Hubei Academy of Forestry,Wuhan 430075)
出处
《湖北林业科技》
2025年第4期24-28,共5页
Hubei Forestry Science and Technology
基金
中央级公益性科研院所基本科研业务费专项资金项目“油茶宜机化品种选育及配套栽培模式研究”(CAFYBB2023ZA001)
湖北省林业科学研究院院基金“干旱条件下提高油茶造林成活率技术”(2025-ZZLX-A06)。
关键词
油茶
高接换种
成活率
新梢
冠幅
Camellia oleifera
crown grafting
survival rate
young shoot
canopy area
