水稻品种混植对稻飞虱种群的影响  

Effect on Mixture Inter-Planting of the Different Rice Varieties against Planthopper Population

作　　者：钟平生[1,2] 梁广文[1] 曾玲[1] 

机构地区：[1]华南农业大学昆虫生态研究室 [2]惠州学院生命科学系,广东惠州516007

出　　处：《惠州学院学报》2007年第6期26-30,共5页Journal of Huizhou University

基　　金：国家"973"重大科研项目(G20000162209);惠州学院博士启动基金项目(C_503.0203)

摘　　要：研究系统调查了稻飞虱种群在有机稻品种混植区的消长动态,结果显示,有机早稻品种混植区白背飞虱1-2龄若虫、3-5龄若虫及成虫均低于单植区,整个调查期间单植区白背飞虱发生量为混植区的3.33倍- 8.57倍。有机晚稻混植区褐稻虱的发生类似于早稻田白背飞虱发生情况,但其发生量明显低于单植区,单植区内褐稻虱为混植区内的2.34倍-4.96倍。这表明在有机耕作稻田,采用不同抗性的品种混植,能降低稻飞虱发生数量,减少其为害。The dynamic of planthopper population was investigated in mixture planting of organic rice fields.The results showed that the number of white back planthopper(WBPH)reduced significantly in mixture planting of varieties as compared with single planting in early rice.The number of WBPH in single inter-planting was 3.33times-8.57times that in mixture planting.It was similar to that of Brown Planthopper(BPH)in the second season rice.The number of BPH in single inter-planting increased 2.34times-4.96times compared with that in mixture planting.The above results indicated that the mixture planting of the varieties could decrease the num- bers of rice plathopper in organic population.

关 键 词：有机耕作 稻飞虱 混植 

分 类 号：S431.11[农业科学—农业昆虫与害虫防治]