ACTA AGRICULTURAE BOREALI-SINICA ›› 2013, Vol. 28 ›› Issue (S1): 376-379. doi: 10.7668/hbnxb.2013.S1.071

Special Issue: Potato crops Plant protection

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Research on Three Different Strains of Fusarium spp. of Pathogenicity to Sweet Potato and Sensitivity Test to Seven Kinds of Fungicides

ZHANG Cheng-ling, ZHAO Yong-qiang, XU Zhen, YANG Dong-jing, SUN Hou-jun, XIE Yi-ping   

  1. Xuzhou Sweet Potato Research Center, Key laboratory of Biology and Genetic Improvement of Sweet Potato, Ministry of Agriculture, Xuzhou 221131, China
  • Received:2013-08-25 Published:2013-12-31

Abstract: The toxicity of 7 fungicides against three different strains of Fusarium spp. was detected by the method of mycelium growth inhibition for plant disease controlling and breeding. The result showed that,Bacillus subtilis WP had the best control effect to the three Fusarium spp. with the best EC50 as 0.0023 ug/mL. Difenoconazole.propiconazole and hexaconazole had better control effect to 12Z-1 and 12Z-2 with EC50 between 0.0025 ug/mL and 0.86 ug/mL,and EC90 between 11.O1 ug/mL and 46.48 ug/mL than 12Z一with EC50 as 1.54 ug/mL and 12.36 ug/mL, and EC90 as 1893.29 ug/mL and 1101.14 ug/mL respectively. With the needle}ticking method,we found that among the four different sweet potato varieties Yanshu 25 was more resistant to 12Z-1 and 12Z-2,and Lizixiang and Xushu 18 were following. Shenglibaihao was more resistant to 12Z一than the other varieties, and Yanshu 25 was following.

Key words: Fusarium, Sweet potato, Fungicide, Pathogenicity

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Cite this article

ZHANG Cheng-ling, ZHAO Yong-qiang, XU Zhen, YANG Dong-jing, SUN Hou-jun, XIE Yi-ping. Research on Three Different Strains of Fusarium spp. of Pathogenicity to Sweet Potato and Sensitivity Test to Seven Kinds of Fungicides[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2013, 28(S1): 376-379. doi: 10.7668/hbnxb.2013.S1.071.

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