黑曲霉泡腾片对烟草青枯病防效及烟株生长的影响

Effect of Aspergillus niger effervescent tablets on tobacco bacterial wilt control and growth of tobacco plants

以云烟87为试材,研究黑曲霉(Aspergillus niger)泡腾片生防菌剂对烟草农艺性状的影响和对烟草青枯病的防治效果。盆栽试验表明,黑曲霉泡腾片稀释800倍时,对烟草青枯病的防治效果可达92.9%,显著高于稀释1 200倍的多粘类芽孢杆菌(Peanibacillus ploymyxa)(42.9%)的防效(P<0.05)。大田试验表明,黑曲霉泡腾片在提高烟草叶片数、叶长、叶宽、直径、株高等农艺性状方面优于清水对照,表现出良好的促生效果;对采收的烤烟进行送检,结果表明,施用泡腾片的烟叶呈现出良好的评吸效果。

Using Yunyan 87 as test material, the effects of Aspergillus niger effervescent tablets on the agronomic traits of tobacco and the control effect on tobacco bacterial wilt were studied. Results of pot experiment showed that when the A. niger effervescent tablets were diluted 800 times, the control effect on tobacco bacterial wilt could reach 92.9%, which was significantly higher than that of Peanibacillus polymyxa diluted by 1 200 times (42.9%)(P<0.05). The field experiment showed that the agronomic traits of A. niger effervescent tablets in improving tobacco leaf number, leaf length, leaf width, diameter and plant height were better than that of clear water control, which showed good growth promoting effect. The results showed that cured tobacco leaves with effervescent tablets treatment presented a good smoking evaluation effect.