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1933年水稻干尖线虫病由日本传入,目前已蔓及我国主要稻区.1958年在镇江地区溧水县洪兰乡发现此病,当时仅限于中生银坊、北京粳等几个试种品种.1970年本所种植的船桂96全田发病;新育成的品种71-320(科情3号×短银坊)病株率平均达45.1%,因病害严重未能大面积推广应用.1974年镇江地区共调查2904块晚稻田,病穴率在10%以下的田块占57.4%,10～50%的田块占30.6%,50%以上的占12%.通过对单季晚稻苏粳2号、农垦58等品种的20组测定,病
In 1933, rice dry tip nematode disease was introduced from Japan and now it has spread to the main rice areas in China. In 1958, the disease was found in Honglan Township, Lishui County, Zhenjiang District. At that time, the disease was limited to several test plantations such as Zhongsheng Yinfang and Beijing Jing Varieties. In 1970, the whole plant was planted in Boi Gui 96, and the diseased plants of newly cultivated varieties 71-320 (Section 3 × Short Yinfang) had an average rate of 45.1%. Because of the serious disease, they failed to be widely applied. A total of 2,904 late rice fields were surveyed in Zhenjiang area in 1974, accounting for 57.4% of the plots with a disease-prone rate of less than 10%, 30.6% of the plots with 10-50% of the plots, and 12% of those with more than 50% Japonica 2, Nongken 58 varieties such as 20 sets of determination, disease