由于1998年春季气候异常,使得小麦病害种类在不同品种间及局部地块发生了一些变化,即一些新的病害种类呈较重趋势发生及次要病害上升为主要病害的特点。 据统计晋州市1997年度小麦播种面积3万hm~2,品种布局以冀麦38、38新系(9306)为当家品种,播种面积2.2万hm~2,占总面积的77％;“4185”,占13.1％;冀麦36,占5.8％;5093、石 Due to the anomalous climate in spring 1998, some diseases occurred in different varieties and local plots, that is, some new types of diseases showed a heavier trend and minor diseases were the main diseases. According to the statistics, the planting area of ​​wheat in Jinzhou was 30,000 hm ~ 2 in 1997, and the variety layout was headed by Jimai 38,38 new series (9306) with sown area of ​​22,000 hm ~ 2, accounting for 77% of the total area; “4185 ”, Accounting for 13.1%; Ji Mai 36, accounting for 5.8%; 5093, stone