Disaster Prevention and Mitigation Technologies of Rice Virus Diseases Spread by Small Brown Planthopper (SBPH)

Rice stripe virus disease （RSVD） and rice black-streaked dwarf virus disease （RBSDVD） are two epidemic diseases in Yancheng City, Jiangsu Province in the last decade. The authors investigated the disaster regularity, prevention and control technology of RSVD and RBSDVD systematically. The occurrence and virus transmission of SBPH and disaster regularity of virus diseases were studied; the resistance of some rice varieties was cleared; the effects of physical and agricultural measures such as insect net blocking, appropriate late sowing and plowing on controlling occurrence and virus transmission of SBPH were figured out; a hatch of chemical agents were screened, providing efficient and harmless pesticides for effective control against SBPH and prevention against virus diseases. A set of disaster control and mitigation technologies was proposed in this paper, which was practical, sustainable, and easy to operate for the local planting patterns.

水稻黑条矮缩病抗性遗传研究进展

水稻黑条矮缩病(RBSDVD,rice black-streaked dwarf virus disease)是以灰飞虱为主要传毒介体,由水稻黑条矮缩病毒(RBSDV,rice black-streaked dwarf virus)引起的一种水稻病毒性病害。介体灰飞虱一经染毒,终身带毒,但不能通过虫卵传毒。近十几年水稻黑条矮缩病在中国南方稻区广为流行,造成了水稻的严重减产。目前主要通过使用农药来防治其传毒介体灰飞虱,但由于灰飞虱种群数量大,导致其防治效果不佳,而且存在环境污染的忧患,故培育和利用抗水稻黑条矮缩病的水稻品种是综合防治水稻黑条矮缩病的基础。本文对水稻黑条矮缩病的分布及危害、抗病种质资源、抗性鉴定方法、抗病基因/QTL的定位、抗病分子机理及育种进行综述,为开展水稻黑条矮缩病抗性遗传研究和品种选育提供参考。