当前甘肃省小麦生产上面临的一个突击问题是:条锈病新小种“93—1”(暂定名)的出现,使全省绝大多数主栽品种及正在推广的品种丧失了抗锈性。 “93—1”是1993年鉴定到的。与其它条锈生理小种相比,具有毒力更强、毒性谱更宽等特点。近年出现频率上升也很快,无论全国还是省内,在现有小种中其出现的数量已跃居第三位。据省农科院植保所1994年接种鉴定结果,该小种 A surprise problem facing the current wheat production in Gansu province is the emergence of a new races of “93-1” (tentative name) of stripe rust, which has caused the loss of rust resistance to most of the major cultivars and varieties being promoted in the province . “93-1” was identified in 1993. Compared with other stripe rust races, it has stronger virulence and broader toxicity spectrum. In recent years, the frequency of occurrence has also risen rapidly. No matter in the whole country or in the province, the number of occurrences among the existing races has risen to the third place. According to the provincial Academy of Agricultural Sciences plant protection inoculation results in 1994, the races