平凉市小麦条锈病越夏菌源分布区域精准勘测及主要影响因子研究

摘要

通过多年调查研究,明确了当地小麦条锈病菌主要越夏寄主、越夏方式和越夏菌源量的影响因子,精准界定了越夏菌源分布区域;通过对历史资料系统分析,研究筛选出了主要相关因子,采用多元逐步回归方法组建了当地小麦条锈病越夏菌量预测模型,回测准确率为73.91%,对开展其综合治理有积极的指导作用.%After many years' study,the pathogens of local wheat stripe rust and its occurrence rule were found.The distribution areas of the pathogen were also determined.By analyzing historical materials,we chose the main relative factors and constructed the forecasting models for the local wheat stripe rust,which was then tested for its accuracy.