吉林省粟瘟病菌生理小种研究

STUDY ON THE PHYSIOLOGICAL RACES OF MILLET BLAST IN JILIN PROVINCE

摘要:

我省粟瘟病菌生理小种,鉴定为7群25个小种。其中E、F两群,是我省的优势种群,E₃,F₁是遍布全省的优势小种,C₁₃、D₇,G₀三小种分别在部分地区占优势。全省1979—1984六年间无明显逐年增长或消减的菌群,基本呈相对稳定状态。研究证明粟瘟病菌小种类群分布与当地谷子栽培品种的种类和栽培面积密切相关。

Abstract:

The races of millet blast fungus (Piricularia stariae Nishik) in Jilin Province were distinguished into 7 groups and 25 races. Among these, the groups E and F were the dominant groups. E₃ and F₁ were the superior races which can be found all over the province and C₁₃、D₇ and G₀ occupied a dominant possition in a partial region respectively. There was no race which increased or decreased evidently in six years between 1979 and 1984, and it was in relatively stable state basically. The study showed that the distribution of the race of millet blast was related to the cultivars and areas to plant millet closely.