Institute of Insect Sciences,Zhejiang University,Hangzhou 310029,P.R.China;
Chongqing Key Laboratory of Entomology & Insect Control Engineering/College of Plant Protection,Southwest University,Chongqing 400716,P.R.China;
Institute of Insect Sciences,Zhejiang University,Hangzhou 310029,P.R.China;
Institute of Insect Sciences,Zhejiang University,Hangzhou 310029,P.R.China;
transgenic Bt rice,Cry1Ab insecticidal protein,paddy soil,degradation,environmental factors;