新型植物生长调节剂对烟草花叶病的控制作用

【研究目的】为开发和创制新的烟草病毒病控制药剂提供依据，从而指导烤烟生产中花叶病的防治问题；【方法】试验设芸苔素内酯400倍，8 %宁南霉素水剂800倍与清水对照(cK)3个处理，3次重复，随机区组设计；【结果】在重庆市黔江烟区，用植物生长调节剂——芸苔素内酯和宁南霉素两种生物药剂进行了防治烟草花叶病毒病侵染烟草的田间试验，结果表明：两种药剂对烟草花叶病均具有比较好的控制效果，相对防效均在70%左右，且对烟草生长具有一定的促进作用。【结论】芸苔素内酯不但能发挥其生长调节剂的功能——促进烟草生长，而且也是防治烟草花叶病的较为理想的药剂。

Control Effect of New Plant Growth Regulator against Tobacco Mosaic Virus Diseases

【OBJECTIVE】The main object of this article was to develop and creat new antiviral pesticide for controlling tobacco virus diseases, consequently it could provide guidance to control tobacco mosaic virus diseases during tobacco production process【METHOD】The experiment treatments were Brassinolide 400×, 8% Ninnanmycin AS 800× and CK, respectively, each treatment replicated 3 times, the design of random block【RESULTS】The field experiments on controlling tobacco and cucumber mosaic virus diseases were fulfilled to validate the control efficacy of the plant growth regulator (Brassinolide) and Ninnanmycin, in Qian-jiang tobacco growing area, Chongqing. The result showed that both of the pesticides had inhibitory effect to tobacco mosaic virus diseases and had the effect of accelerating tobacco growth, of which the mean control efficacy were both about 70%【CONCLUSION】Brassinolide not only had the ability of the plant growth regulator to accelerate tobacco growth, but also was an ideal pesticide to control tobacco mosaic virus .