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白背飞虱猖獗频率增加与杂交稻面积增加的关系分析
引用本文:唐启义,程家安.白背飞虱猖獗频率增加与杂交稻面积增加的关系分析[J].西南农业大学学报,1998,20(5):456-459.
作者姓名:唐启义  程家安
作者单位:中国水稻研究所,浙江农业大学
基金项目:“九五”国家重大科技攻关计划资助,国家自然科学重点基金
摘    要:对湖南、广西两省(区)90个县市1981~1987年杂交水稻种植面积和白背飞虱发生量进行列联表分析表明,白背飞虱在大区域范围内为害加重和猖獗频率上升与杂交稻种植面积扩大呈密切的正相关。

关 键 词:白背飞虱  杂交水稻  列联表

RELATIONSHIP BETWEEN OUTBREAK FREQUENCY OF SOGATELLA FURCIFERA (HORVNTH) AND GROWING AREA OF HYBRID RICE
Tang Qiyi, Hu Guowen, Tang Jian, Hu Yang.RELATIONSHIP BETWEEN OUTBREAK FREQUENCY OF SOGATELLA FURCIFERA (HORVNTH) AND GROWING AREA OF HYBRID RICE[J].Journal of Southwest Agricultural University,1998,20(5):456-459.
Authors:Tang Qiyi  Hu Guowen  Tang Jian  Hu Yang
Abstract:Based on the data from 1981 to 1987 in 90 counties or cities of Hunan and Guangxi, this paper analyzes the relationship between outbreak frequency of white back planthopper ( Sogatella furcifera Horvnth) and growing area of hybrid rice by contingency table and Chi square test. It was concluded that the increasing of aggravating degree and outbreak frequency is closely related to popularizing hybrid rice in a large area.
Keywords:white  back planthopper  hybrid rice  contingency table
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