摘要
为探讨苹果绵蚜与苹果树的互作关系,用Y形嗅觉仪测试该虫对不同苹果品种枝条的嗅觉反应,顶空萃取枝条挥发物,并进行GC-MS分析。结果表明:该虫在寄主选择时,能被不同品种苹果枝条气味吸引;对珊夏的趋向性最强,平均选择率为71.25%,其次是短枝富士、乔纳金、腾木1号,平均选择率均在60%以上;对首红的最弱,平均选择率仅为56.75%。珊夏枝条挥发物主要成分(E-3-己烯-1-醇、甲酸己酯)的相对含量(14.74%,9.52%)均多于其他品种;首红枝条挥发物主要成分(4-甲基-1,3-戊二烯、乙酸叶醇酯)的相对含量(16.37%,10.27%)均多于其他品种。初步确定,E-3-己烯-1-醇、甲酸己酯可能是对苹果绵蚜有较强引诱作用的重要物质;4-甲基-1,3-戊二烯、乙酸叶醇酯不是引诱苹果绵蚜的物质。
To study the interaction between Eriosoma lanigerum and apple trees, olfactory response of the aphid to different kinds of apple branches was tested by Y-olfactometer and volatiles from the branches were extracted with HS （Head-space） and measured with GC-MS. The result showed that E.lanigerum was differentially attracted by the odors from different kinds of apple branches during looking for host plants. Variety, Sansa showed the most intensive attraction with the average selection rate reaching to 71.25% and Red Fuji Spur, Jonagold, Fujiki 1 followed in sequence with the selection rate all above 60%. Attraction capacity of Red Chief Delicious was less than others and the average selection rate was only 56.75 %. The major volatiles of Sansa were E-3-Hexen-1-ol （14.74%）, Formic acid and hexyl ester （9.52%） and they were all more than that in other varieties relatively. The major volatiles of Red Chief Delicious were 4-methyl-1, 3-pentadiene （16.37%） and Z-3-Hexen-1-ol,acetate （10.27%） and were also more than that in other varieties. Formic acid, hexyl ester and Z-3-Hexen-1-ol were preliminarily confirmed to be the important substances for attracting woolly apple aphid, but 4-methyl-1,3-pentadiene and Z-3-hexen-1-ol, acetate were not.
出处
《林业科学》
EI
CAS
CSCD
北大核心
2009年第8期91-95,共5页
Scientia Silvae Sinicae
