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80年代初,水稻细菌性基腐病仅在苏南局部地区发生,1986年则开始在苏北沿海—如东县发生,并迅速蔓延为害。据调查,1988年,全县70万亩中粳稻,有40多万亩发病,其中严重面积达15万亩左右。病株率1—24.5％,平均9.8％。由于病株多数造成枯孕穗或枯白穗,故其产量损失在90％左右。1988年,如东县因此病危害而损失的稻谷达2000多万公斤,已成为苏北沿海稻区水稻上的重要病害。分析此病发生的原因,主要是
In the early 1980s, bacterial base-rot disease of rice occurred only in some areas of southern Jiangsu. In 1986, it began to take place in the coastal area of northern Jiangsu, Rudong, and spread rapidly. According to the survey, in 1988, the county 70 million mu of medium-sized japonica rice, more than 400,000 mu incidence, of which a serious area of about 15 acres. Disease rate of 1-24.5%, an average of 9.8%. Due to the majority of diseased plants caused by booting or dry white ear, so the loss of production of about 90%. In 1988, about 20 million kilograms of rice lost due to the disease in Rudong County has become an important disease on paddy in the coastal areas of northern Jiangsu. Analysis of the causes of the disease, mainly