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タイトル長崎県で発生した春ハクサイの根こぶ病
タイトルヨミナガサキケン デ ハッセイ シタ ハル ハクサイ ノ コブ ビョウ
タイトル別表記Clubroot of Spring Chinese Cabbage in Nagasaki Prefecture, Kyushu
作成者田中, 秀平
根来, 実
太田, 孝彦
勝本, 謙
西, 泰道
作成者ヨミタナカ, シュウヘイ
ネゴロ, ミノル
オオタ, タカヒコ
カツモト, ケン
ニシ, ヤスミチ
作成者別表記Tanaka, Shuhei
Negoro, Minoru
Ota, Takahiko
Katumoto, Ken
Nishi, Yasumichi
作成者所属山口大学農学部
内容記述(抄録等)Since 1988 clubroot of cruciferous vegetables caused by Plasmodiophara brassicae WORONIN has been observed at Shimabara, Nagasaki Prefecture, as an additional incidence in Kyushu. There the clubroot disease damaged severely those vegetables, especially spring Chinese cabbage.Hot-bed nurseries are seeded with the Chinese cabbage during mid November to mid March. Seedlings are grown for about 35 days and transplanted into plastic film houses, film tunnels or outdoor fields. Diseased plants have been found both in these fields and in the hot-bed nursery during the short-day period at which the occurrence of clubroot has been supposed to be suppressed. In the inoculation test, the Shimabara isolate showed high virulence to Chinese cabbage and cabbage even at very low inoculum-density such as 1 × 10^2 spores/g dry soil. The Shimabara isolate, therefore, was presumed to be one of the highest virulent strains. High virulence of the Shimabara isolate may be an important factor, as well as the relatively high indoor temperature in the hot-bed, plastic film house and film tunnel, of the clubroot-incidence during the growth of spring Chinese cabbage under the short-day at Shimabara. The Shimabara isolate was judged to belong to race 4 by WILLIAM'S method, and could not attack all of seven clubroot-resistant cultivars of Chinese cabbage tested. These cultivars may be available to prevent the Shimabara isolate from affecting. Among four fungicides tested for controlling the Shimabara isolate, MTF-651 (under application) was constantly effective. On the other hand, PCNB was hardly effective, and torikuramido and TPN were effective at the low inoculum density such as 1 ×10^4 spores/g dry soil but ineffective at the high inoculum density such as 1 × 10^7 spores/g dry soil.
本文言語jpn
著者キーワードPlasmodiophora brassicae
Chinese cabbage
clubroot in Kyushu
virulence
environmental condition
主題農学
資料タイプtext
出版者山口大学農学部
出版者ヨミヤマグチ ダイガク ノウガクブ
NII資料タイプ紀要論文
ISSN0513-1715
NCIDAN00244250
学内刊行物(紀要等)山口大学農学部学術報告
掲載誌名山口大学農学部学術報告
掲載誌名別表記Bulletin of the Faculty of Agriculture, Yamaguchi University
38
開始ページ33
終了ページ45
発行日1990
著者版/出版社版その他
リポジトリIDD490038000004
地域区分山口大学
URIhttp://www.lib.yamaguchi-u.ac.jp/yunoca/handle/D490038000004