速保利防治小麦雪霉叶枯病效果研究  

Effect of Diniconazole for Controlling Gerlachis(Gerlachia Nivalis)Leaf Blight of Wheat

作　　者：井金学[1] 商鸿生[1] 朱文武 王美南[1] 

机构地区：[1]西北农业大学植保系

出　　处：《西北农业大学学报》1995年第3期6-10,共5页Journal of Northwest Sci-Tech University of Agriculture and Forestry（Natural Science Edition)

基　　金：国家"八五"攻关;省农办;杨陵基金

摘　　要：孢子萌发试验证实速保利对小麦雪霉叶枯病菌分生孢子芽管有强烈的致畸作用，６．２５μｇ·ｍＬ￣（－１）浓度即可使８２．３％的芽管畸变。离体叶碟法和盆栽幼苗法药效测定结果表明，速保利有优异的保护和治疗活性，可有效地抑制该病菌的侵入和在植株体内扩展。田间药效测定证明速保利具有较宽的施药时间范围，低浓度药液即可有效地控制成株叶枯病。一次施药可兼治多种病害。Spores germination test with nutrient agar medium showed that Dini- conazole did not inhibit conidia grmiation,but markedly caused 82.3%of germ-tube dis- tortion at a level of 6.25 μg/mL. The results of both leaf disk assay(in vitro)and potseedling assay indicatedthat Diniconazole had protective and curative activities againstthe pathogen. According to the field trials,Diniconazole could effectively control the leafspot and the leafblight for adult wheat,and possessed the properties of a longer appli-cation period and smaller dosages.

关 键 词：小麦 雪霉叶枯病 内吸杀菌剂 速保利 药剂防治 

分 类 号：S435.122.4[农业科学—农业昆虫与害虫防治] S482.26[农业科学—植物保护]