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据浙江农业大学植保系、临海县农科所和农业局研究,水稻细菌性基腐病在分蘖至拔节期造成稻株枯死,严重影响每亩基本苗数,孕穗以后引起枯孕穗、半枯穗和枯穗,秕谷率大量增加,千粒重显著降低,产量锐减。其症状主要是茎基部发黑腐烂,有难闻的恶臭。分蘖期每丛只出现1—2个零星病株。病株先在近土表茎基部的叶鞘上,出现水渍状椭圆形或不规则形病斑,后渐向上扩展成边缘深褐色,中间枯白色的不规则形大型病斑,可延及大部份叶鞘。茎基部变褐色至灰黑色,节部色泽常较深,有时在节间上出现黑褐色纵条斑。严重的病株先心叶青卷,随后枯黄,
According to Zhejiang Agricultural University Department of Plant Protection, Linhai County Institute of Agriculture and the Bureau of Agriculture, rice bacterial basis rot disease in the tillering to jointing caused rice plants dead seriously affect the basic number of seedlings per acre, after booting cause booting bosom, semi-acerbity And calamus, a substantial increase in the rate of tamarisk, grain weight was significantly reduced, production dropped sharply. Its symptoms are mainly black-rotten stem base, there are unpleasant stench. At the tillering stage, only 1-2 sporadic strains appeared in each plexus. The diseased plants first appeared on the leaf sheath at the base of the soil near the soil table, showing water stains like oval or irregular spots, then gradually expanding into dark brown edges, and the large white spot irregular large lesions spread to large Partial leaf sheath. The base of the stalk is brown to gray-black, and the color of the stalk is often darker, sometimes with dark brownish-tan streaks appearing on internodes. Serious disease congenital leaves green volume, then yellow,