Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2009, Vol. 25 ›› Issue (4): 212-214.

• 植物保护科学 • Previous Articles     Next Articles

Preliminary study on biological characteristics of root rot pathogen of Bupleurum chinense DC.

  

  • Received:2008-11-21 Revised:2009-01-13 Online:2009-02-20 Published:2009-02-20

Abstract: Root rot disease is one of the most important diseases of Bupleurum chinense DC, biological characters were studied in this paper. Results showed that the optimal temperature and pH of it were 25~30℃ and pH6~8. Also, we found that, pathogen isolated sporulated easier on oatmeal medium than PDA medium. The optimal condition for conidia germination was 20~25℃, pH4~6 and relative humidity 100%. Conidia of pathogen will begin to germinate in water drop 3 hours later, and germinated thoroughly after 10 hours, the lethal temperature of conidia was 51℃ for 10 minutes.

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