6种病毒抑制剂对西藏青稞上大麦黄矮病的防治效果  

Control efficacy of six plant virus inhibitors on barley yellow dwarf disease in Tibet

作　　者：刘何春[1,2] 姚小波 李杨[1,2] 雷雪萍 王文峰[2,3] LIU Hechun;YAO Xiaobo;LI Yang;LEI Xueping;WANG Wenfeng(Agriculture Research Institute,Tibet Academy of Agriculture and Animal Husbandry Sciences,Lhasa 850032,China;Lhasa Crop Pest Scientific Observation and Experiment Station of Ministry of Agriculture and Rural Affairs,Lhasa 850032,China;Institute of Agricultural Resources and Environment,Tibet Academy of Agriculture and Animal Husbandry Sciences,Lhasa 850032,China)

机构地区：[1]西藏自治区农牧科学院农业研究所,拉萨850032 [2]农业农村部拉萨作物有害生物科学观测试验站,拉萨850032 [3]西藏自治区农牧科学院农业资源与环境研究所,拉萨850032

出　　处：《植物保护》2021年第1期297-302,共6页Plant Protection

基　　金：西藏自治区自然科学基金(XZ2018ZR G-62(Z));国家重点研发计划-政府间国际科技创新合作重点专项(2017YFE0104900);西藏自治区科技重大专项(XZ2019NA01-2020-011)。

摘　　要：通过田间小区试验,开展了6种病毒抑制剂对西藏青稞上大麦黄矮病防治效果的研究。采用带毒蚜虫人工接种法,于青稞起身拔节期每株接种10~15头带毒麦长管蚜,7 d后灭蚜,灭蚜后3 d喷施病毒抑制剂,在成株期出现黄矮病症状后调查病株率、病情指数、防治效果,以及长势和产量。结果表明,6种病毒抑制剂对青稞上大麦黄矮病有不同程度的防治效果,其中6%寡糖·链蛋白WP、0.5%香菇多糖AS和8%宁南霉素AS防治效果分别为65.38%、52.41%和50.11%;处理后的青稞有不同程度的增产,其中6%寡糖·链蛋白WP、0.5%香菇多糖AS和40%烯·羟·吗啉胍SP处理增产率分别为78.44%、53.22%、27.42%。综合本文结果表明,6%寡糖·链蛋白WP、0.5%香菇多糖AS对西藏大麦黄矮病有较好的防治效果和增产率。Control efficacy of six plant virus inhibitors on barley yellow dwarf disease of highland barley were evaluated in Tibet.The experiments were carried out to inoculate Barley yellow dwarf virus to the highland barley leaves at the stage of standing to jointing with viruliferous aphids(Sitobion miscanthi).Each plant was inoculated with 10 to 15 viruliferous aphids.Aphids were killed with imidacloprid 10%WP seven days after inoculation,and all plants were sprayed three days later with plant virus inhibitors.Investigation of disease index,growth,and yield showed that six plant virus inhibitors have different degrees of control effect on barley yellow dwarf disease of highland barley.When treated by oligosaccharins·plant activator protein 6%WP,fungous proteoglycan 0.5%AS,and ningnanmycin 8%AS,the control efficacies on barley yellow dwarf disease were 65.38%,52.41%and 50.11%,respectively.Compared with water treatment,the increase rate of barley yields were 78.44%,53.22%and 27.42%,respectively,when treated by oligosaccharins·plant activator protein 6%WP,fungous proteoglycan 0.5%AS,and enadenine·oxyenadenine·moroxydine hydrochloride 40%SP.The above results indicate that oligosaccharins·plant activator protein 6%WP and fungous proteoglycan 0.5%AS have good control effect on barley yellow dwarf disease in Tibet.

关 键 词：大麦黄矮病 病毒抑制剂 防效 长势 产量 

分 类 号：S482.2[农业科学—农药学] S432.41[农业科学—植物保护]