对云斑白条天牛具有不同抗性的杨树品种中挥发物成分的研究

Study on Volatile Constituents of Populus deltoides with Different Resistant Ability to Batocera horsfieldi

研究了对云斑白条天牛有不同抗性的杨树品种中挥发物的化学成分 ,通过GC MS DS分析 ,鉴定了 6 8个成分 ,南抗 1号A 34 17杨中挥发物成分最多 ,2 71杨最少 ,Ⅰ 6 9杨与 2 97杨居中。研究发现不同抗性的杨树的烷烃含量及提取物含有的挥发物成分的数量与抗性一致。另外 ,南抗 1号A 34 17杨、2 97杨和Ⅰ 6 9杨中松柏醇的含量远远高于 2 71杨 ,具有高抗性能的南抗 1号A 34 17杨中有机酸、醛、酮、酯等成分明显高于其他品种。对总离子流较强的 2 4个成分进行了数理统计中的聚类分析 ,仅从数理统计的角度看 ,Ⅰ 6 9杨和 2 71杨首先聚为一类 ,其次将南抗 1号A 34 17杨和 2 97杨聚为一类 ,最后将南抗 1号A 34 17杨和Ⅰ 6 9杨又聚为一类 ,这与南抗 1号A 34 17杨抗性最强 ,2 97杨次之 ,Ⅰ 6 9杨为中抗 ,2

The volatile constituents resistant to Batocera horsfieldi in 4 kinds of Populus deltoides were studied. Sixty eight constituents were determined by GC MS DS. It is discovered that the better the resistant ability to B.horsfieldi, the higher the content of alkyl hydrocarbon in the 4 varieties of P. deltoides tested. Twenty four main constituents were clustered. The result of clustering analysis coincides with the actual situation.