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国内外的研究表明稻瘟病菌(Pyricularia oryzae)存在着的不好致病性不同的生理小种,小种的组成和区系分布是决定品种抗病性的重要因素。1982—1984年我们从三明市11个县(区)的53个水稻品种上采集182份病标样,对分离的232个有效单孢菌株用全国统一鉴别品种鉴定为6群23个生理小种,测出了目前各县(区)的优势种群及其地理分布、在进行生理小种鉴定的同时,于1983年和1984年进行了品种对生理小种抗性谱的测定试验,本文报道对10个常规品种、9个恢复系或杂优组合和2个抗源亲本的抗谱测定结果。
Domestic and foreign studies have shown that there are different pathogenicity races and races of Pyricularia oryzae. The composition and floristic distribution of races are the important factors that determine the disease resistance of varieties. From 1982 to 1984, we collected 182 samples from 53 rice cultivars in 11 counties (districts) of Sanming City. 232 isolates were identified as 6 groups of 23 physiological races , Measured the dominant species in each county (district) and its geographical distribution, in the identification of physiological races at the same time, in 1983 and 1984 were tested varieties of physiological race resistance spectrum test reported in this paper Anti-spectral analysis results of 10 conventional varieties, 9 restorer lines or hybrid combinations and 2 anti-progeny parents.