25个奇楠沉香无性系生长与光合生理特征分析  

Analysis on Growths and Photosynthetic Physiological Characteristics of 25 Aquilaria sinensis'Qi Nan'Clones

作　　者：张启雷 刘小金[1,2] 李小飞 方小英[1] 徐大平 朱士铭[1] 钟锦祥 熊咏梅 Zhang Qilei;Liu Xiaojin;Li Xiaofei;Fang Xiaoying;Xu Daping;Zhu Shiming;Zhong Jinxiang;Xiong Yongmei(Research Institute of Tropical Forestry,Chinese Academy of Forestry,Guangzhou,Guangdong 510520,China;State Key Laboratory of Efficient Production of Forest Resources,Beijing 100091,China;Huizhou Hongmao Forestry Development Co.,Ltd.,Huizhou,Guangdong 516338,China;Guangzhou Collaborative Innovation Center on Science-tech of Ecology and Landscape,Guangzhou,Guangdong 510080,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]林木资源高效生产全国重点实验室,北京100091 [3]惠州市鸿茂林业发展有限公司,广东惠州516338 [4]广州市生态园林科技协同创新中心,广东广州510080

出　　处：《广西林业科学》2024年第3期295-301,共7页Guangxi Forestry Science

基　　金：中央级公益性科研院所基本科研业务费专项资金资助项目(CAFYBB2022SY018);广东省基础与应用基础研究基金项目(2024A1515011221);广州市科技局社会发展项目(202206010058);林业和草原科技成果国家级推广项目(2020133130)。

摘　　要：为筛选适合广东惠州地区推广和种植的奇楠沉香(Aquilaria sinensis'Qi Nan')优良无性系,以25个奇楠沉香无性系为研究材料,分析不同无性系间生长性状和光合生理差异及其相关性,并进行聚类分析。结果表明,不同奇楠沉香无性系的保存率、苗高、地径、冠幅和光合生理参数均差异显著;其中,保存率为22.7%~95.0%,苗高为117~210 cm,地径为16.8~34.3 mm。苗高与地径呈极显著正相关,与保存率呈显著正相关。聚类分析将25个无性系分为6类;第1类长势较好,保存率、苗高和地径分别为91.7%~95.0%、192~194 cm和28.1~30.9 mm,包括无性系Diao YW、Ao S和Lan BS;第2类苗高较高(199~210 cm),包括无性系Jin SZ、Qi NYH、Jin SY和Zhi TJ;第3类保存率较高(80.1%~93.7%),包括无性系Jin ShaY、Pu TT、Tu YW、Xiang SYH、Da YP和Hei ZZ;其他类群的保存率、苗高和地径均较低。无性系Diao YW、Ao S和Lan BS在惠州地区生长速度快且保存率高,适宜作为优良无性系进行推广。In order to screen excellent clones which were suitable for promotion and cultivation in Huizhou,Guangdong,taking 25 Aquilaria sinensis'Qi Nan'clones as study materials,differences in growth traits and photosynthetic physiology among different clones and their correlations were analyzed,and cluster analysis was performed.Results showed that there were significant differences among different A.sinensis'Qi Nan'clones in preservation rate,seedling height,ground diameter,crown width and photosynthetic physiological parameters.Preservation rates were from 22.7%to 95.0%.Seedling heights were from 117 to 210 cm.Ground diameters were from 16.8 to 34.3 mm.Seedling height had extremely significant positive correlation with ground diameter and had significant positive correlation with preservation rate.Cluster analysis classified 25 A.sinensis'Qi Nan'clones into six clusters.The first cluster had better growths,including Diao YW,Ao S and Lan BS with preservation rates from 91.7%to 95.0%,seedling heights from 192 to 194 cm and ground diameters from 28.1 to 30.9 mm respectively.The second cluster had higher seedling heights from 199 to 210 cm,including Jin SZ,Qi NYH,Jin SY and Zhi TJ.The third cluster had higher preservation rates from 80.1%to 93.7%,including Jin ShaY,Pu TT,Tu YW,Xiang SYH,Da YP and Hei ZZ.Preservation rates,seedling heights and ground diameters in other clusters were relatively lower.Diao YW,Ao S and Lan BS showed fast growths and higher preservation rates in Huizhou,and could be promoted in Huizhou as excellent clones.

关 键 词：无性系 生长 光合生理 聚类分析 奇楠沉香 

分 类 号：S792.99[农业科学—林木遗传育种]