广西白背飞虱生物型测定  

Identification of white-backed plant hopper biotype in Guangxi

作　　者：黄所生[1] 黄凤宽[1] 吴碧球[1] 张雪丽 农春莲 凌炎[1] 龙丽萍[4] 

机构地区：[1]广西农业科学院植物保护研究所,南宁530007 [2]广西区植保总站,南宁530022 [3]北海市白蚁防治所,广西北海536000 [4]广西农业科学院水稻研究所,南宁530007

出　　处：《南方农业学报》2011年第1期46-49,共4页Journal of Southern Agriculture

基　　金：国家科技支撑计划项目(2006BAD08A04-08);国际科技合作项目(2009DFA30810);国家公益性行业(农业)科研专项项目(200803003);广西青年科学基金项目(桂科青0832018);广西青年科学基金项目(桂科青0991057);广西回国基金项目(桂科回0832007);广西自然科学基金项目(2010GXNSFA013100);广西农业科学院基本科研业务专项项目[200830(基)]

摘　　要：【目的】测定广西白背飞虱的生物型组成结构,为抗白背飞虱育种和该虫的可持续控制提供指导。【方法】以TN1(感虫对照)、N22(含Wbph1基因)、ARC10239(含Wbph2基因)、Ptb33(含Wbph3基因)、N'DiangMarie(含Wbph5基因)为鉴别水稻品种,采用群体集团检测法检测白背飞虱田间种群的致害性,用蜜露量检测法测定白背飞虱田间种群个体生物型。【结果】不同监测点白背飞虱的致害能力表现不一,总的表现为对含Wbph1、Wbph2基因的鉴别品种的致害能力较强;所监测的代表点白背飞虱以Ⅰ型所占的比例较多,近年来龙州、合浦、容县、田阳、永福白背飞虱Ⅱ型所占的比例均有不同程度的上升。【结论】在广西进行水稻抗白背飞虱育种亲本选择时尽量不要选用含Wbph1、Wbph2基因的品种;推广的抗虫品种必须抗白背飞虱Ⅰ型,且对白背飞虱Ⅱ型也要有一定的抗性。[Objective] The objective of the cun＇ent study was to determine the biotype structure of white-backed plant hopper （WBPH） in different rice growing areas of Guangxi, and to provide control measures for WBPH. [Method] The population group detection method was used to detect virulence of WBPH population in variety TN1 （susceptible check）, and three test varieties, viz., ARC10239, Ptb33, N＇Diang Marie containing Wbph2, Wbph3 and Wbpb5 gene, respectively, and biotype of WBPH individual was detected by honeydew quantity detection method under field conditions. [Result] WBPH showed different virulence ability at different detection stages. Generally, it showed strong virulence ability in test rice varieties with Wbph1 or Wbph2 genes. WBPH biotype Ⅰ was found in larger proportion in populations collected from different sites. Further, the proportion of WBPH biotype Ⅱ increased at various levels in populations collected from different counties, viz., Longzhou, Hepu, Rongxian, Tianyang, Yongfu during resent years. [Conclusion ] On the basis of the results, use of the rice varieties with Wbphl and Wbph2 genes should be avoided in breeding programs tailored to breed WBPH resistant rice varieties. The extended resistant varieties not only resist WBPH type Ⅰ, but also have certain degree of resistance to WBPH type Ⅱ

关 键 词：白背飞虱 致害性 生物型 广西 

分 类 号：S435.112.3[农业科学—农业昆虫与害虫防治]