摘要
对10年生12个毛白杨无性系的生长性状差异及冠幅、冠长与胸径、树高的相关性进行了分析,结果表明:10年生毛白杨无性系间冠幅、冠长、树高、胸径存在显著差异,冠幅与树高、胸径呈弱负相关,冠长与胸径、树高呈正相关,相关关系达极显著水平,为选育适合生产需要的毛白杨冠型提供了依据,也为无性系选择林期测定提供资料.
Growth characteristics difference and correlationship of Crown Width （C.W.）,Crown Length （C.L.）, Diameter Breast Height （D.B.H.） and Height of twelve clones in ten-year-old populus tomentosa were studied in this paper. Results showed that it was significantly different in D.B.H.,C.L.C.W, Height among different clones in ten-year-old populus tomentosa.The relationship between the C.L. and height ,D.B.H. was significantly correlated （P〈0.01）. The relationship between C.W.and D.B.H. Heigh was correlated. All these conclusions provided basis for selecting and breeding suitable crown. At the same time it provided data for clones investigation.
出处
《河南科技学院学报》
2009年第4期14-18,共5页
Journal of Henan Institute of Science and Technology(Natural Science Edition)
关键词
毛白杨
无性系
冠幅
冠长
生长
Populus tomentosa
Crown Width
Crown Length
Growth
Correlationship
