论文部分内容阅读
采用化学诱导的方法进行烟草对花叶病毒(TMV)的诱导抗性的试验研究.发现用S30和L1种诱抗剂均能在烤烟、白肋烟和心叶烟上诱导出对TMV的抗性.诱抗效应达19.1%,～35.6%.此外,诱抗后心叶烟、白肋烟还表现出枯斑反应提前和枯斑缩小等抗性增强反应.将诱抗材料子代接种TMV,证明有诱抗性传递现象,其传递效应为25.2%～42.6%.经连续三代用L1诱抗剂在同一烤烟品种(G140)的苗期和花期分别诱导,其子代中诱抗性有逐代增强的现象,诱抗性累加效应分别为:F1 16.98%,F2 27.94%,F3 36.42%.
The chemical induced method was used to study the induced resistance of tobacco to mosaic virus (TMV), and it was found that the resistance to TMV could be induced in flue-cured tobacco, burley tobacco and leaf tobacco by using S30 and L1 decoy The inductive effect reached 19.1% and 35.6% respectively.In addition, the induction of anti-heart-leaf tobacco and burley tobacco also showed the enhanced response of early-stage and diminished spot of blight.The inoculation of TMV , Which showed that there was induced resistance transmission and its transmission effect was 25.2% ~ 42.6% .It was induced by L1 generation for three generations in the same flue-cured tobacco (G140) The phenomena of escalating generation and inducing resistance were: F1 16.98%, F2 27.94% and F3 36.42% respectively.