用射线照射种子后,检测幼苗所受的辐射损伤,对于选择突变育种的适宜照射量具有重要意义。一般用幼苗生长的抑制情况作为检测标准。对于单子叶植物的幼苗,只需度量初生叶的长度即可。但准确地测定双子叶植物幼苗的生长情况则颇为困难。由 Blixt 等提出的叶斑检测法,经改进已成功地用于大豆。初生叶面积的缩小程度也可作为一种很方便的检测尺度,对于大豆已被证明是很灵敏的方法。本试验的目的是比较以叶斑、初生叶面积和幼苗高度作为标准的三种方法检测赤豆幼苗辐射损伤的效果。 After irradiating the seed with the radiation, detecting the radiation damage suffered by the seedling is of great significance for selecting suitable irradiation amount for mutation breeding. The general growth inhibition of seedlings as a test. For monocotyledonous seedlings, simply measure the length of the primary leaf. However, it is rather difficult to accurately measure the growth of dicotyledonous seedlings. Leaf spot detection by Blixt et al. Has been successfully applied to soybeans. The extent of primary leaf area reduction can also be used as a convenient measure for soybeans and has proved to be very sensitive. The purpose of this experiment is to compare the effects of three methods of leaf spot, primary leaf area and seedling height on radiation injury of red bean seedlings.