摘要
试验研究转MH86CpTI基因抗虫水稻和转MH86CpTI+Bt双价基因抗虫水稻稻田节肢动物群落的多样性,结果表明:转基因稻田节肢动物群落可分为先锋群落、郁闭未稳定群落和郁闭稳定群落3个阶段;在水稻灌浆期到蜡熟期,转基因水稻稻田中每次采得的节肢动物的物种数为CK>MH86CpTI>MH86CpTI+Bt,个体数量大小为CK>MH86CpTI>MH86CpTI+Bt,总体多样性指数与均匀性指数均为CK>MH86CpTI>MH86CpTI+Bt;转基因水稻稻田节肢动物群落的多样性与常规稻相比未见明显差异。在水稻生育前期与后期,转基因抗虫水稻田害虫优势度最高的分别为电光叶蝉和褐飞虱。
The effect of pest resistant transgenic rice MH86^cpTI and MH86^CpTI＋Bt on arthropod community diversity in Fuzhou rice fields was investigated. Results show that arthropod community in pest resistant transgenic rice fields can be classified into initial, unsteady and development communities. From tillering stage to waxy ripe stage of rice, species and individual number of arthropod communities collected are as follows： CK 〉 MH86^CpTI 〉 MH86^CpTI ＋Bt and CK 〉 MH86^CpTI 〉 MH86^CpTI ＋ Bt ; both general diversity, index and index of evenness are all CK 〉 MH86^CpTI 〉 MH86^CpTI＋ Bt. No significant difference of diversity is recorded between arthropod community in pest resistant transgenic rice fields and non-transgenic rice fields. At the early and late rice growth stages, the dominant pests in the transgenic rice fields are Nephotettix concticeps and Nilaparavate lugens respectively.
出处
《中国生态农业学报》
CAS
CSCD
2007年第4期120-123,共4页
Chinese Journal of Eco-Agriculture
基金
国家自然科学基金(F0210019)
福建省自然科学基金重点项目(B0020003)资助
关键词
转基因抗虫水稻
节肢动物
群落
多样性
Pest resistant transgenic rice,Arthropod,Community,Diversity
