不同品种对病害的感柒程度有显著差异,其差异的程度与病害流行的程度有关,一般是中度流行年较大流行年差异更明显。从1974～1980年在小麦品种圃中,筛选出三年以上均表现中抗以上的品种23个,其中表现抗病的品种5个、抗到中抗的16个、中抗的2个。并应用其中的一些抗源品种,育成一批经全国联合鉴定抗性较强而稳定、丰产性比抗源品种有显著改善的新品系。经品种圃鉴定和各地调查表明,现有比较抗病的品种一般均不抗侵入,但抗扩展的能力却十分明显。根据抗性鉴定材料的统计分析结果,品种抗性与品种类型、株高和花药残留量在某种程度上有一定的联系,但与花药颜色和小穗密度无关。 The susceptibility of different varieties of diseases have significant differences, the extent of the difference between the extent and prevalence of the disease, the general prevalence of major epidemic year more significant differences. From 1974 to 1980, wheat cultivars were screened for 23 varieties with medium resistance over three years, of which 5 were resistance to disease, 16 were resistant to moderate resistance and 2 were moderately resistant. And some of these anti-source varieties were applied to breed a batch of new lines that were significantly better than the anti-source cultivars which were identified by the national joint identification as being strong, stable, and high-yielding. The identification of varieties of nurseries and surveys throughout the country show that the existing varieties are generally not resistant to invasive disease resistance, but the ability to resist expansion is very clear. According to the statistical analysis results of resistance identification materials, the resistance of cultivars was related to the type of cultivars, plant height and anther residues to a certain extent, but not to the anther color and spikelet density.