论文部分内容阅读
水稻细菌性条斑病(XanthomonasOryzicola Fang et al.)是水稻的一种新病害。据广东省测定,轻病因减产6—10％,一般病田减产15—25％,发病重的减产40—60％。由于该病对水稻生产为害大,目前局限于部分地区发生,而且种子可以带菌,因此被列为全国及本省植物检疫对象。本省条斑病最早在宁波专区农科所(1962年)发现。近几年来由于从广东等地引进矮秆品种时没有严格执行检疫制度,病害在省内有所发展。据1965年早晚稻调查,本省有7个县(市)发生了条斑病,
Rice bacterial leaf streak (Xanthomonas Oryzicola Fang et al.) Is a new disease in rice. According to the determination of Guangdong Province, 6-10% of patients with mild etiology, 15-25% of general illness, and 40-60% of patients with severe diseases. As the disease is very damaging to rice production, it is currently confined to some areas and the seeds can be carried. Therefore, it is listed as a national and provincial plant quarantine object. The province streak disease first found in the Ningbo area Agricultural Institute (1962). In recent years, due to the introduction of dwarf varieties from Guangdong and other places did not strictly enforce the quarantine system, the disease has developed in the province. According to the investigation of morning and evening rice in 1965, leaf streaks occurred in seven counties (cities) in the province,