摘要
本文以安庆市大观区南埂林场杨树无性系试验林为研究对象,通过11年的跟踪调查,对试验林18个杨树无性系的胸径、树高、材积等生长指标进行调查,对其生长性状遗传变异性进行了分析,采用主成分分析法对其生长适应性进行综合评价,结果表明:不同无性系间胸径、树高、单株材积等生长指标都存在极显著差异,其中江淮1号杨的各项生长指标最大,在生长适应性综合评价中排名第一,继承了亲本的优良特性,具有较高的遗传增益,达13.81,是优良的雄性杨树无性系。
After a follow-up investigation on the test forest of poplar clones for 11 years,seudies were made of the growth indexes of 18 poplar chones such as DBH,tree height and volume and genetic variabilities,and their growth adaptabilities were evaluated comprehensively by principal component analysis for 18 poplar clones in the test forest of Nan geng Forest Farm at Daguan District of Anqing City.The results showed that there were significant differences in DBH,tree height,volume among different clones.the growth indexes of‘Jiang Huai 1’was best,‘Jiang Huai 1’was an excellent male poplar clone by ranking first in comprehensive evaluation of growth adaptability,which not only inherited the excellent characteristics of parents,but also had high genetic gain.
作者
苗婷婷
吴中能
于一苏
刘俊龙
孙慧
曹志华
MIAO Ting-ting;WU Zhong-neng;YU Yi-su;LIU Jun-long;SUN Hui;CAO Zhi-hua(Anhui Academy of Forestry,Hefei 230031,China)
出处
《四川林业科技》
2019年第5期78-82,共5页
Journal of Sichuan Forestry Science and Technology
基金
“十三五”国家重点研发计划课题(2016YFD0600401)
“十一五”科技支撑专题(2006BAD01A1501)
关键词
杨树
生长指标
遗传变异
评价
Poplar
Growth index
Genetic variability
Evaluation
