This result indicated that the length of cortical browning could be used in mass screening of the cereal resource resistance to take-all disease at seedling stage in greenhouse.

• 在12项发病指标中,只有皮层褐化长一个指标入选主成分,表明皮层褐化长度可反映品种的抗病性差异,该指标可用于室内苗期抗全蚀病资源的大量筛选。