目前我国西北、华北大部分小麦主栽品种均已先后丧失了抗条锈性,新育成或选育中的有希望的接班品种多以洛夫林系统品种作抗源,但该系统品种在陇南不仅用作抗源亲本,而且已推广种植。陇南是我国小麦条锈病大区流行的关键地区之一,条锈病菌可以在当地越夏和越冬,有利于新小种的产生、保存和菌量积累。近三十年来。我国多数生产品种的抗条锈性“丧失”现象,都是从这里开始,进而发展到黄、淮、海流域广大 At present, most of the wheat cultivars in northwestern China and northern China have already lost the resistance to stripe rust. Hopeful succession breeds in new breeding or breeding are mostly Lovrin system breeds, but the varieties of the system are in Longnan Not only used as anti-parent, but also promote planting. Longnan is one of the key areas where wheat stripe rust is endemic in China. Stripe rust can be found in summer and over winter, which is beneficial to the generation, preservation and accumulation of new races. In the past three decades. The majority of varieties of our country’s resistance to stripe rust “loss” phenomenon, are starting from here, and then developed to the Yellow River, Huaihe River Basin wide