在不同水分处理条件下，研究了６个甘蔗品种幼苗性状的差异。结果表明，在正常供水条件下，抗旱品种表现为叶片较窄，叶片叶绿素含量较高，叶片上下表皮刚毛较多；抗旱品种在复水条件下比正常供水时具有更大的根系表面积和最大的根系伤流量；而品种间切叶自然失水速度和叶片水分饱和亏的差异有待进一步研究。 Under different water treatment conditions, the differences of seedling traits of 6 sugarcane varieties were studied. The results showed that under normal conditions of water supply, drought-tolerant cultivars showed narrower leaves, higher chlorophyll content and more epidermal bristles in the leaves than in the normal water supply conditions, and the drought-resistant cultivars had larger root surface area and maximum Root traumatic flow; and the difference between the rate of natural water loss of leaf cuttings and the water saturation loss of leaves remains to be further studied.