摘要
为了筛选小麦黄矮病的真菌多糖防治药剂及其适宜浓度,将云芝、灵芝、虫草等13种真菌多糖稀释成0.1、0.5、1.0、2.0g·L-1溶液,以清水为对照,比较分析了叶面喷施真菌多糖对小麦黄矮病的预防和治疗效果,同时对防效好的1.1%云芝葡聚糖(多糖)与常规植物抗病毒药剂的田间防效进行了比较。结果表明,13种真菌多糖对小麦黄矮病的预防作用都显著高于治疗作用,且真菌多糖间和浓度间差异均显著,其中云芝多糖1.0g·L-1、云芝多糖2.0g·L-1、蜜环菌多糖2.0g·L-1、灰树花多糖2.0g·L-1、猪苓多糖2.0g·L-1的预防效果分别为86.88%、86.58%、86.33%、86.04%和85.97%。1.1%云芝葡聚糖800倍液为适宜喷施浓度,其防效64.27%,保产22.70%,说明云芝多糖是一种有前途的新型小麦黄矮病免疫抑制剂。
In order to screen fungal polysaccharides pesticide and suitable concentration against wheat yellow dwarf,13kinds of fungi polysaccharides from Coriolus versicolor,Ganoderma lucidum, Cordyceps sinensis,and so on were diluted to 0.1,0.5,1.0,2.0g·L-1,with water as the control（CK）.The preventive and therapeutic effect of fungi polysaccharides were analyzed through spraying on wheat leaves,as well as the field control effect of 1.1% Coriolus versicolor dextran（polysaccharides）were analyzed with conventional plant antiviral agents.The results showed that the preventive effect of the 13kinds of fungi polysaccharides were significantly better than their therapeutic effect; remarkable differences were observed among both different kinds of fungi polysaccharides and different concentration solutions,in which the preventive effect of 1.0g·L-1 Coriolus versicolor polysaccharides,2.0g·L-1 Coriolus versicolor polysaccharides,2.0g·L-1 Armillaria mellea polysaccharides,2.0g·L-1 Griflola frondosa polysaccharides,and 2.0g·L-1 Polyporus umbellata polysaccharides was up to 86.88%,86.58%,86.33%,86.04%and 85.97%,respectively.The 800times dilutions of 1.1%Coriolus versicolor dextran could obtain a control effect up to 64.27%,and output ef-fort of 22.70%.These results indicated that Coriolus versicolor dextran is a promising neotype immune inhibitor for wheat yellow drawf.
出处
《麦类作物学报》
CAS
CSCD
北大核心
2014年第4期557-562,共6页
Journal of Triticeae Crops
基金
高等学校学科创新引智计划项目(B07049)
国家公益性行业(农业)科研专项(201303021)
国家高技术研究发展计划(863计划)“特殊微生物资源的研究和利用”项目(2007AA021503)
关键词
真菌多糖
小麦黄矮病
防治效果
产量
Fungi polysaccharides
Wheat yellow dwarf
Control effect
Grain yield
