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利用全国和河南等5省1990～2009年小麦条锈病发生面积数据,分析了年度间波动性大和同年度区域间流行程度有差异的特点。针对以上特点造成跨年度长期预测难度大的现实,结合多年实践经验和历史资料证明,甘肃上年秋苗病情与全国发病面积呈极显著相关。因此,可用其作为判断长期预测发病程度的重要依据。根据病情为害特点,提出了全国条锈病发生面积的5级数值分级指标及根据各麦区不同种植方式,确定了发生面积调查和记载方法,为各地田间调查提供参考。
Based on the area data of wheat stripe rust occurring in five provinces in China and from 1990 to 2009 in Henan Province, this paper analyzed the characteristics of the difference in prevalence between regions in the same year and in the same year. In view of the fact that the above characteristics result in long-term prediction of cross-year long-term difficulties, combined with many years of practical experience and historical data, the disease in autumn autumn in Gansu was significantly correlated with the national incidence. Therefore, it can be used as an important basis for judging the long-term predicted incidence. According to the characteristics of the disease, this paper put forward five grades grading index of the area of stripe rust disease in the whole country, and according to the different planting methods of each wheat area, the investigation and recording method of occurrence area were confirmed, which provided references for the field surveys in different places.