13个奇楠沉香品系在广东潮州的早期生长分析  

Analysis on the Early Growth of 13 Aquilaria sinensis‘Qi Nan’Clones in Chaozhou,Guangdong Province

作　　者：郑卓江 刘小金[1] 张启雷 徐大平[1] 李小飞[1] 方小英 ZHENG Zhuojiang;LIU Xiaojin;ZHANG Qilei;XU Daping;LI Xiaofei;FANG Xiaoying(Research Institute of Tropical Forestry,Chinese Academy of Forestry,Guangzhou,Guangdong 510520,China;Chaozhou Xianglin Agarwood Planting Technology Co.,Ltd,Chaozhou,Guangdong 515638,China)

机构地区：[1]中国林业科学研究院热带林业研究所,广东广州510520 [2]潮州市香林沉香种植科技有限公司,广东潮州515638

出　　处：《林业与环境科学》2023年第2期54-58,共5页Forestry and Environmental Science

基　　金：潮州市科技计划项目(202102NY01);林业和草原科技成果国家级推广项目(2020133130)。

摘　　要：为筛选适合广东潮州地区推广种植的优良奇楠沉香品系Aquilaria sinensis ‘Qi Nan’,选择已推广种植的13个品系,测定定植1年后树高、地径、冠幅和保存率等生长指标。结果表明:不同奇楠沉香品系间保存率差异达极显著水平(P<0.001),蓝宝石、金丝油、凹身对试验区的环境适应能力较强,保存率较高,西瓜叶、波浪仔保存率较低,在该地适应能力较差。不同品系的树高、地径、冠幅和高径比的差异均极显著(P<0.001)。通过系统聚类分析,可分为3个类群,A类群为金丝油,生长速度较快,B类群为红骨尖叶和波浪仔,生长缓慢,其他品系为C类,生长速度适中。综合早期生长性状,金丝油生长速度快,保存率高,适应性强,适合在潮州地区推广种植;红骨尖叶和波浪仔,保存率低,生长速度慢,不宜于潮州地区大面积推广种植。To screen out the excellent clones of Aquilaria sinensis‘Qi Nan’(QN)suitable for promotion and planting in Chaozhou,Guangdong province,13 main clones that have been popularized and planted were selected,and the growth indexes such as tree height,ground diameter,crown width,and preserving rate were measured 1 year after planting.The results showed that there existed a significant difference in the preserving rate among the different clones(P<0.001).The QN03,QN05,and QN02 exhibited strong adaptability to the local environment,which showed a higher preserving rate,while the preserving rate of QN06 and QN12 were low,and the adaptability was poor.Great differences(P<0.001)in height,ground diameter,crown width as well as height diameter ratio of different clones were observed.Through cluster analysis,13 clones can be divided into three groups.Group A was QN05,with a fast growth rate.Group B included QN11 and QN12,with slow growth.Other clones were summarized in group C,with a moderate growth rate.Based on the early growth performance,QN05 showed a fast growth rate,high preserving rate,and strong adaptability,which was suitable for popularization in Chaozhou.The QN11 and QN12 with a low preserving rate and slow growth rate,which was not suitable for large-scale popularization in Chaozhou.

关 键 词：奇楠沉香 品系筛选 早期评价 聚类分析 

分 类 号：S796[农业科学—林木遗传育种]