近年来,植物辐射诱变研究向深入发展,研究植物的种类进一步扩大,因此如何快速预测各种植物适宜辐射剂量的问题急待解决。以常用的 LD_(50)(使50%植株死亡的剂量)作指标,需在田间定株后测定,所用时间较长并易带来人为的误差。用 GR_(50)(使生长势下降50%的剂量)进行预测,速度快,重复性好,但数值偏高。本试验以 VID_(50)(使活 In recent years, the research on plant radiation mutagenesis has been further developed and the types of plants studied have been further expanded. Therefore, how to quickly predict the appropriate radiation dose for various plants is urgent to be solved. To LD_ (50) (50% of the dose of plant deaths) as an indicator to be measured in the field after the set, the longer the time and easy to bring about human error. With GR_ (50) (to reduce the growth potential 50% of the dose) to predict, fast, good repeatability, but high values. This test to VID_ (50) (to live