摘要
对新疆伊犁引种的白杨派26个品种进行了生长量、形态特征、病虫害的比较分析。研究表明:白杨派26个品种生长量各不相同。方差分析表明,不同品种间树高和胸径均差异极显著(p<0.01);树高和胸径以及冠幅高和冠幅直径之间呈极显著正相关(p<0.01),胸径和冠幅高间呈显著正相关(p<0.05)。这说明在白杨派各品种间存在差异,优良品种的选择性很大。各个品种干形较好、树皮光滑;主要灾害是冻害,但都可愈合,没有虫害。26个品种中优势品种为84K、银×新12#、银×新4#、84-I-101、银白杨,可大面积推广。
A study was performed to compare growth increment, morphological characteristic and diseases and insect pests of 26 varieties of Leuce duby in Yili, Xinjiang Autonomous Region. Results show that the growth increments of the 26 varieties of Leuce duby are significantly different. Analysis of variance indicates that there are extremely significant differences in tree height and diameter at breast height (DBH) between different varieties (p〈O. 01 ) , and highly significant positive cor- relations between tree height and DBH as Well as crown height and crown width (p〈0.01). The DBH is significantly correlated with crown height (p〈0.05). Fine varieties could be selected according to the difference between the varieties. All the varieties exhibit straight stem and smooth bark. The major disaster of the 26 varieties is cold injury, but they could heal naturally, and no insect damage was observed. Fine varieties were selected out, including 84K, Populus alba x P. bolleana, P. alba x P. bolleana, 84-I-101 and P. alba, which can be widely popularized.
出处
《东北林业大学学报》
CAS
CSCD
北大核心
2011年第10期12-14,共3页
Journal of Northeast Forestry University
基金
农业科技成果转化资金项目(2006GB2G400340)
关键词
白杨派
种质资源
生长量
Leuce duby
Germplasm resources
Increment