国立研究開発法人 国際農林水産業研究センター | JIRCAS

Symptoms and Ecology of Bacterial Brown Stripe of Rice

JARQ : Japan Agricultural Research Quarterly
ISSN
00213551
書誌レコードID(総合目録DB)
AA0068709X
本文フルテキスト

Bacterial brown stripe of rice, caused by Pseudomonas avenae Manns is a disease that affects rice seedlings. The symptoms of the disease on rice plants in the seedling stage were divided into 4 types: i.e. inhibition of germination, brown stripes on a leaf, curving of a leaf sheath and abnormal elongation of a mesocotyl. After the infected seedlings were transplanted to paddy fields, the symptoms were masked. Natural occurrence of the disease was not seen after the tillering stage, except for the case where rice plants were submerged in the water by flood. At the heading stage, the causal bacteria invaded the seeds during several days around the flowering date without any symptoms. A small quantity of the bacteria increased rapidly during the germination period and became the source of infection in nursery boxes in the following year. An effective method for controlling the disease is to maintain an adequate level of temperature and humidity each in growing rice seedlings and to use pathogen-free seeds with a germination test before planting. In case where the seeds are contaminated with the pathogen, it is important to control the disease by a bactericide of kasugamycin.

刊行年月1990-07-01
作成者Ikuo KADOTA Akira OHUCHI
データ作成日1990-07-01
国立情報学研究所メタデータ主題語彙集(資源タイプ)Journal Article
24
1
開始ページ15
終了ページ21
言語eng