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本文报导了1986—1990年对甘肃省2075份小麦条锈菌标样的监测结果。共监测出23个生理小种类型。发现新小种条中29号及洛13致病类群出现频率急骤上升,导致“洛类”品种抗性广泛变异,是近年病害重新流行为害的主要因素。并就新小种类型对目前主要生产品种和抗源的致病特点进行了研究,为品种布局和抗源选用提供了具体目标。
This paper reports the results of the monitoring of 2075 wheat stripe rust markers from 1986 to 1990 in Gansu province. A total of 23 physiological races were detected. It was found that the frequency of occurrence of pathogenic groups 29 and 13 in the new germplasm increased sharply, resulting in the wide variation of the resistance of the genus “Luo”, which was the main factor of the re-flow of the disease in recent years. In addition, the pathogenicity of the current major cultivars and sources of resistance was studied on the new races, providing specific targets for variety distribution and anti-source selection.