Evaluation of photochemical oxidant stress of crops based on ultra-short term growth dynamics using novel optical interferometric technique

研制了一种高灵敏度光学干涉仪——统计干涉技术（SIT），用于测量植物叶片在秒级时间尺度上的超短期生长动态。该技术特别关注光化学氧化剂作用下的作物，应用于水稻等作物的臭氧胁迫监测。实验结果表明，该技术比常规方法更能有效地监测臭氧胁迫下作物的生长状况。此外，还可以区分不同作物品种对臭氧的耐受性。

Highly sensitive optical interferometer named Statistical Interferometric Technique (SIT) was developed to measure ultra-short term growth dynamics of plant leaves in temporal scale of second. Paying a special attention to crops under exposure of photochemical oxidant, the technique was applied to monitor ozone stress of crops, e.g., rice plants. It was proved that the technique was valid to monitor the stress of crops under ozone exposure much faster than the conventional methods. In addition, it was possible to distinguish the tolerances for ozone between the cultivars of crop.