不同杨树品系还原糖含量与青杨脊虎天牛危害的关系  

Relationship between Reducing Sugar Content in Different Poplar Strains and Damage of Xylotrechus rusticus (Coleoptera: Cerambycidae)

作　　者：张玉宝[1] 李金国[1] 安堃[1] 严善春[1] 迟德富[1] 

机构地区：[1]东北林业大学,哈尔滨150040

出　　处：《东北林业大学学报》2006年第2期35-37,共3页Journal of Northeast Forestry University

基　　金：国家"十五"科技攻关项目(01-08-03-02);黑龙江省重大科技攻关项目(GB01B203-01);国家林业局留学人员科技活动择优资助项目。

摘　　要：利用3,5-二硝基水杨酸比色法测定小青杨、小青×黑杨、小黑杨、香杨、27年生和40年生小叶杨韧皮部和木质部的还原糖含量。结果表明:各杨树品系木质部的还原糖含量远远低于韧皮部的含量,且韧皮部的还原糖含量差异显著。不同杨树品系韧皮部和木质部的还原糖含量与被害株率没有相关性。在27年生同一品系小叶杨树中,虽然不同高度的还原糖含量差异不显著,却与被害株率呈现紧密负相关。The reducing sugar content in the phloem and xylem of Populus pseudo-simonii, P. pseudo - simonii × P. nigra, P. simonii x P. nigra, P. koreana, 27 and 40-year-old P. simonii wood was analyzed by 3,5-dinitrasallcylic acid colorimetry. Results showed that the reducing sugar content in phloem was much higher than that in xylem, and a significant difference was found in the phloem of different poplar strains. The correlation between the reducing sugar content in phloem and xylem and the ratio of damaged trees was not close. For 27-year-old P. simoniir, the reducing sugar content in phloem and xylem at different heights did not show significant difference, while it showed closely negative correlation with the ratio of damaged trees.

关 键 词：青杨脊虎天牛 3 5-二硝基水杨酸比色法 还原糖 

分 类 号：S763.3[农业科学—森林保护学]