アブラナ科野菜根こぶ病菌菌系の病原力のハクサイ根こぶ病の発生生態および薬剤防除効果に対する影響

• 田中 秀平

  山口大学農学部

• 吉原 茂昭

  山口県病害虫防除所

• 伊藤 真一

  山口大学農学部

• 亀谷 満朗

  山口大学農学部

書誌事項

タイトル別名

• The Influence of Virulence of Plasmodiophora brassicae Populations on Epidemiology of Chinese Cabbage Clubroot and Efficacy of Fungicides.
• アブラナカ ヤサイ ネコブビョウキンキンケイ ノ ビョウゲンリョク ノ ハクサ

抄録

Biological characteristics of three field populations of Plasmodiophora brassicae Woronin differing in virulence to a susceptible cultivar of Chinese cabbage were examined. The relationship between their virulence and the epidemiology of Chinese cabbage clubroot, as well as the efficacy of fungicides was also investigated. Highly virulent populations resulted in a high frequency of root hair infections and a high density of resting spores in the clubroot gall. Highly virulent population also caused severe damage to Chinese cabbage even at a low inoculum density under short-day-length conditions. The efficacy of three fungicides (trichlamide, flusulfamide and fluazinam) was high against the weakly virulent population, but low against the highly virulent population. These results suggest that the frequency of root hair infections, the density of resting spores in the clubroot gall, the effect of day length on clubroot incidence and the efficacy of fungicides vary depending on the virulence of P. brassicae populations.

収録刊行物

• 日本植物病理学会報

  日本植物病理学会報 63 (3), 183-187, 1997

  日本植物病理学会

キーワード

• Plasmodiophora brassicae
• population
• virulence
• epidemiology
• day length
• chemical control

詳細情報

• CRID: 1390282681380524160
• NII論文ID: 110007723106
• NII論文ID: 10008754043
• NII書誌ID: AN0019269X
• DOI: 10.3186/jjphytopath.63.183
• ISSN: 18820484
• ISSN: 00319473
• NDL書誌ID: 4268349
• Web Site: https://agriknowledge.affrc.go.jp/RN/2010560134
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4268349
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • IRDB
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可