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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Rice hoja blanca virus ： ウィキペディア英語版 Rice hoja blanca virus ''Rice hoja blanca virus'' (RHBV) is the agent of the most important viral disease of rice in Latin America.〔Morales, F. J. and Niessen, A. I. 1983. Association of spiral filamentous viruslike particles with rice hoja blanca. Phytopathology. 73:971-974.〕 The disease is found in Mexico, throughout Central America and the Caribbean region. In South America the disease is endemic to Colombia, Venezuela, Ecuador, Peru, Suriname, French Guiana and Guyana. ==Symptoms== The symptoms in rice are chlorotic streaks that can coalesce and cause the leaves to turn white. When young plants become infected, they are stunted and in severe cases the leaves turn necrotic and the plants die. Infections that occur before the emergence of the panicle can reduce seed set and quality. RHBV epidemics are cyclic. During the peak of RHBV epidemics, yield losses at the country level have been estimated to be between 25% and 50%.〔Jennings, P. R. 1963. Estimating yield loss in rice caused by hoja blanca. Phytopathology. 53:492.〕〔Vargas, J. P. (1985). La hoja blanca: descalabro de CICA-8. Arroz, Bogota Colombia 34:18-19.〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Rice hoja blanca virus」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.