| indices, including seedling livability under repeated drought, plant height, lamina withering degree, lamina caducity resistance degree and root properties, were chosen to evaluate the drought-resistance of dry-land rice in seedling stage. Using the method of comprehensive drought-resistance classification, the tested varieties were ranked as: N422s/R8272>Zhenhan6>Handao110>IPAR>Handao277>Handao8>Zhenhan7>Liaoyou3072>Zhengzhouzaojing. The results showed that the method of comprehensive drought-resistance classification was coincident well to actual situation. By analyzing the relationship between drought-resistance and various indices, it was indicated that the seedling livability, lamina withering degree, root length, root dry weight, root/shoot ratio and rootstalk size could be adopted as the drought-resistance evaluation indices of dry-land rice in seedling stage, while the biomass weight and neonatal roots after drought stress could be used as reference indices. |