烟草科技2017，Vol.50Issue(4)：18-24,7.DOI:10.16135/j.issn1002-0861.2016.0332
种子携带病毒对烟草苗期病毒病发生的影响
Effects of seed transmitted virus on occurrence of virus disease at tobacco seedling stage
摘要
Abstract
To effectively control virus disease at tobacco seedling stage, pot experiments were conducted to study the effects of seed transmitted virus on the occurrence of virus disease. Vigorous tobacco seeds were cultured in a floating system after soaking in solutions of TMV, CMV and PVY at different concentrations. Virus carrying rates and contents of tobacco seedlings were measured at four true leaves stage. The results showed that the seeds soaked in TMV, CMV and PVY solutions were infected with virus disease to different extents. The lowest(threshold)virus concentrations of TMV, CMV and PVY were 7.46×104, 7.44×104 and 7.52× 104 copies/μL, respectively. There was no correlation between the amount of virus carried by tobacco seedling and the virus content in solution. Tobacco seedlings infected virus disease when the amount of virus carried by tobacco seeds was higher than the threshold.关键词
烟草/种子/病毒病/TMV/CMV/PVY/侵染Key words
Tobacco/Seed/Virus disease/TMV/CMV/PVY/Infection分类
农业科技引用本文复制引用
董红红,邓海滨,王晓宾,李华平,阮小蕾..种子携带病毒对烟草苗期病毒病发生的影响[J].烟草科技,2017,50(4):18-24,7.基金项目
广东省烟草专卖局(公司)科技项目"烟草苗期病毒病综合防控措施与快速检测技术研究与应用"(201308). （公司）
