稻瘟病菌生理小种田间消长规律研究,我国近年也已开始。本研究针对早稻稻瘟病菌生理小种田间消长进行观察,着重了解早叶瘟与穗瘟小种及抗性的内在关系;流行期各月份生理小种变化与优势种的关系及年度间田间小种变化与品种栽培面积及气候的关系等。 Magnaporthe grisea physiological races field growth and decline of law, China has also begun in recent years. In this study, we observed the growth and development of physiological races of the early rice Blast germ, focused on understanding the inner relationship between the early rash and the panicle blast and the resistance, the relationship between the races and the dominant species in each month of the epidemic, Variety and cultivation of cultivated area and the relationship between climate and so on.