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1981—1986年,作者先后对来自国内外不同生态条件下的4689份(次)水稻品种资源进行多年多点抗瘟鉴定。1982—1986年先后对当前生产上主栽品种、有苗头品系及主要抗源共计48份进行抗小种谱测定。结果表明:1.贵州红稃尖等8个品种连续六年均表现抗性强和抗性稳定,可作为抗病(源)亲本利用。2.来自国际水稻所、广东省等地的稻种资源抗性较强,分别占各自鉴定数的55.80%和55.10%,3.汕优63等6个品种(系)或组合抗大部分供测小种和菌株,表现抗性谱较广和抗性较强的特点,汕优63等已在生产上发挥出显著的经济效益。
From 1981 to 1986, the author successively conducted multi-year multi-point blast tests on 4689 rice germplasm resources under different ecological conditions at home and abroad. From 1982 to 1986, a total of 48 cultivars of cultivars, cultivars and major sources of anti-nicotine were determined. The results showed that: 1. Eight cultivars of Guizhou red crested ibis showed strong resistance and stable resistance for six consecutive years and could be used as disease resistant (source) parents. Rice resources from the International Rice Research Institute and Guangdong Province were relatively resistant, accounting for 55.80% and 55.10% of the respective appraised numbers, and 6 varieties (lines) or combinations of most of them Test races and strains, the performance of a wide spectrum of resistance and strong resistance characteristics, such as Shanyou 63 have played in the production of significant economic benefits.