Scientia Agricultura Sinica ›› 2006, Vol. 39 ›› Issue (9): 1810-1816 .

• PLANT PROTECTION • Previous Articles     Next Articles

Sensitivity of the different developing stages in the life cycle of Pseudoperonospora.cubensis to enostrobilurin

  

  1. 中国农业大学农学与生物技术学院植物病理系 中国农业大学农学与生物技术学院植物病理系
  • Received:2005-11-11 Revised:1900-01-01 Online:2006-09-10 Published:2006-09-10

Abstract: Abstract: The effects of enostrobilurin to the different development stages in the life cycle of P. cubensis was studied. The results showed that enostrobilurin had no effect on cystospore germination, but prevented the zoospore dischargement, zoospore motility, germ tube elongation, hypha growth , sporangiophore emergency from stomata and sporangial formation. The EC50 of enostrobilurin to zoospore dischargement and germ tube elongation were 0.0239μg/ml, 0.0037μg/ml, respectively. enostrobilurin made zoospore cleaned up at 0.05µg/ml and inhibited hypha, growth sporangiophore emergency from stomata and sporangial formation obviously at 5μg/ml.

Key words: different development stages, sensitivity, enostrobilurin, P. cubensis

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