华北农学报2011，Vol.26Issue(z1)：163-167,5.
转双价基因棉(Bt+CpTI)对七星瓢虫捕食棉蚜功能反应的影响
Effects of Transgenic Bt Plus CpTI Cotton on Predating Function Response of Coccinella septempunctata to Aphis gossypii Glover
摘要
Abstract
The predating functional response of Coccinella septempunctata with 5 different stages were studied by feeding on the cotton aphids, which were respectively reared on the transgenic (Bt + CpTI) cottons( SGK321 ) and its parental variety (Shiyuan321) using the biological assay in laboratory condition. The results indicated that the predating functional response matched Holling type II mode. The predating number increased with the prey den sity , while the searching efficiency decreased with the the prey density. The predating numbers in 80 and 240 in a dult and 80 in 2nd instar larvae showed significantly lower than the control cotton while others did not differ signifi cantly to the control cotton. It indicated that the maximum of predating number of the 1st and 3rd instar larvae and adult was higher when compared with control cotton and the controlling of the cotton aphids was stronger than the control cotton. In conclusion, the transgenic Bt plus CpTI cotton appeared little effect on predating function response of Coccinella septempunctata to Aphis gossypii Glover关键词
转双价基因棉/棉蚜/七星瓢虫/捕食功能反应Key words
Transgenic Bt + CpTI genes cotton/ Aphis gossypii Glover/ Coccinella septempunctata/ Predating functional response分类
农业科技引用本文复制引用
卢延,薛丽,周正堂,董金锦,高希武,宋敦伦..转双价基因棉(Bt+CpTI)对七星瓢虫捕食棉蚜功能反应的影响[J].华北农学报,2011,26(z1):163-167,5.基金项目
转基因生物新品种培育重大专项(2008ZX08012-04) （2008ZX08012-04）
