安顺地区烤烟漂浮育苗TMV发生现状及致病因素分析  

Occurring Situation and Pathogenic Factors of TMV for Tobacco Float Seedling Production in Anshun Area

作　　者：范成平 左锐 刘学辉 

机构地区：[1]贵州省烟草公司安顺市公司,贵州安顺561000 [2]贵州省生物技术研究所,贵州贵阳550006 [3]贵州省植物保护研究所,贵州贵阳550006

出　　处：《安徽农业科学》2014年第33期11784-11785,11841,共3页Journal of Anhui Agricultural Sciences

基　　金：烟草病毒病防治体系的建立(201118)

摘　　要：[目的]了解安顺地区漂浮育苗TMV病毒发生规律以及导致大棚内发生大面积侵染的原因.[方法]于2011 ～2013年对安顺市主要烤烟种植区（县）病毒检出率、育苗点不同大棚烟苗带毒率以及TMV高发大棚周边环境进行调查.[结果]安顺市各烟区所有检测批次的样品均有一定的带毒率,不同烟区烟苗风险样品率及高风险样品率不同,其中紫云县烟苗TMV阳性检出率为历年最高.漂浮苗带毒率与育苗棚管理水平密切相关.随着育苗集约化程度提高,烟苗TMV阳性检出率提高,感染TMV的风险增大.设施不齐全、周边生态环境、育苗管理操作不到位为TMV传播提供了初侵染原和重要途径,导致烟苗带毒率大大增加.[结论]为防治烟草普通花叶病及提高烤烟的产量及品质提供了理论依据.[Objective] The occurring law and pathogenic factors of TMV for tobacco float seedling production in Anshun area were understand.[Method] The detection rate of TMV from main flue-cured tobacco planting areas,virus carried rate of seedlings in different greenhouses of seedling points and the surrounding environment of TMV high-incidence greenhouse in Anshun were investigated from 2011 to 2013.[Result] All the samples from each tobacco planting area of Anshun had certain virus carried rate; the risk sample rate and high risk sample rate of seedlings were different in different areas,among them the positive detection rate of seedlings TMV from Ziyun County was the highest for each year.The virus carried rate of float seedlings was closely related with management level of greenhouse.With the improvement of seedling intensive degree,the positive detection rate of seedlings TMV increased,and then the risk of TMV infecting increased.The lack of facilities,surrounding environment and the lack of seedling management provided initial infective source and important way for TMV so as to lead the increase of virus carried rate of seedlings.[Conclusion] The results provide theoretical basis for control of TMV and improvement of tobacco＇ yield and quality.

关 键 词：烟草普通花叶病 发生规律 原因分析 

分 类 号：S572[农业科学—烟草工业]