四川不同生态条件下水稻杂糯间栽技术对稻瘟病的控制作用  

Study on Control Effects of Rice Mixture on Rice Blast in Different Ecological Zones

作　　者：叶慧丽[1] 王平[2] 姚琳[1] 毛建辉[1] 卢代华[1] 胡容平[1] 吴江[3] 龚学书[1] 肖兰英[4] 

机构地区：[1]四川省农业科学院植物保护所,四川成都610066 [2]四川省农业科学院生物技术核技术研究所,四川成都610066 [3]四川农业大学植物病理系,四川雅安625014 [4]广安武胜县农业局,四川广安638400

出　　处：《西南农业学报》2010年第5期1510-1514,共5页Southwest China Journal of Agricultural Sciences

基　　金：四川省青年基金(07JQ00374)

摘　　要：为了明确杂糯间栽技术在不同生态条件下控制稻瘟病的效果,在四川省的叙永、资中、营山、蒲江、雅安5个不同的生态区进行试验。结果表明,杂糯间栽在不同生态区不同发病程度下对稻瘟病的控制作用不同。在发病较重的生态区（叙永,发病率86.46%,病指53.61）,间栽糯稻发病程度与净栽糯稻无显著差异。在发病较轻的生态区（营山,发病率6.90%,病指1.08）,部分间栽处理中糯稻发病程度极显著低于净栽。在叙永,杂糯间栽对感病糯稻叶瘟的控制效果在12%~26%,对颈瘟的效果为0;在发病较轻的雅安、营山,对叶瘟的控制效果最高达到46%~88%,对糯稻颈瘟控制效果的范围在11%~76%。总体来说,在发病较轻的生态区,杂糯间栽对感病糯稻稻瘟病的控制效果较好。The effects of rice mixture on rice blast were studied in five different ecological zones. The five different ecological zones were Xuyong County in southern Sichuan, Zizhong County in middle Sichuan, Yinshan County in northern Sichuan , Pujiang County in western Sichuan and Yaan County in the hilly areas of Sichuan. The main restdts were as following： there was no significant difference between rice mixture and monoculture in disease severity of rice blast in severe occurrence regian, its disease incidence was 86.46 % and disease index was 53.61 in Xuyong County. In Yinshan County, its disease incidence was 6.90 % and disease index was 1.08, the disease severities of glutinous rice in many of intercropping treatments were highly significant lower than that of pure-cropping treatment. The control effect of rice mixture on leaf blast of glutinous rice was 12 % to 26 %, and 0 % on panicle blast in Xuyong County. The control effect was 46 % to 88 % on leaf blast and 11% to 76 % on panicle blast in Ya＇an and Yinshan County. In a word, the control effect of rice mixture on rice blast of glutinous rice was higher in lower disease severity place.

关 键 词：水稻 杂糯间栽 稻瘟病 

分 类 号：S435.114.1[农业科学—农业昆虫与害虫防治]