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期 刊 ：植物保护学报 1994年

关键词：烟草赤星病；弱毒株TBA16；诱导抗性；孢子制剂PCF1；病害控制；

Keywords:Alternaria altemata strain TBA16 induced resistance preparation PCF1 brown spot control,

摘 要 ：本文研究了赤星菌(Alternaria alternata)弱毒株TBA16的灭活孢子制剂PCF1对烟草抗赤星病的诱导作用,及在田间控制赤星病的效果和对烟叶产量、品质等性状的影响。在温室内幼苗上,PCF1可明显诱导烟草对赤星病的系统抗性,抗性诱导效应为57％—89％。在山东5个主要产烟县进行的田间试验表明,PCF1有3种作用:①可以明显控制赤星病的发生程度,效果与用作对比的化学农药菌核净相当或略低,在烟草生长后期防治效果可达76％;②增强烟株生长和叶片扩展能力,使烟叶(烘烤后)产量提高7％—38％;③明显改善烟叶内在品质、增加上中等烟叶的比例,使产值提高17％。

Abstract:The hypovirulent strain TBA16 of Alternaria alternata had been evidenced to be able to induce systemic resistance against brown spot of tobacco. A preparation, named PCFl, was made from the conidia of strain TEA 16 which showed good effect of resistance i

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