Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2021, Vol. 37 ›› Issue (3): 145-149.doi: 10.11924/j.issn.1000-6850.casb2020-0512

Special Issue: 园艺

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Identification of Pathogens of Dry Blight Disease in Leaf Tip of Red-fleshed Kiwifruit in Qiandongnan Prefecture

Zhang Guohui1,2(), Li Xiangyang1, Gu Huanxian3, Zhang Wenhhua1, Si Shengli1, Li Rongyu2, Li Ming2   

  1. 1School of Life and Health Science College, Kaili University, Kaili Guizhou 556011
    2Institute of Crop Protection, Guizhou University, Guiyang 550025
    3Forest Plant Control and Quarantine Station of Kaili Forestry Bureau, Kaili Guizhou 556000
  • Received:2020-09-28 Revised:2020-10-15 Online:2021-01-25 Published:2021-01-26

Abstract:

In order to reduce the harm of diseases and ensure the quality of red-fleshed kiwifruit products, this study investigated and identified the new disease in producing areas. The pathogenic fungus of red-fleshed kiwifruit was isolated by tissue separation method, and DNA sequencing was carried out by using the sequence analysis of ribosomal rDNA-ITS region, molecular evolutionary trees were built by using MEGA4.0 software, and the pathogenic fungus was classified and identified by combining morphological observation. The results showed that the dry blight disease in leaf tip was a new disease, which was caused by Epicoccum sorghinum, and had a serious damage on the red-fleshed kiwifruit.

Key words: red-fleshed kiwifruit, dry blight disease in leaf tip, Epicoccum sorghinum, disease symptom, pathogen identification

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