本文以钴~(80)—γ射线不同剂量照射5个不同品种的红豆草种子,结果显著的抑制了幼根、幼芽的生长、降低了种子活力、并使根尖细胞染色体发生畸变,畸变的类型有染色体单桥、双桥、多桥、落后染色体和微核等。按多靶单击模型 Y=1-(1-e~(vD))°拟合效应曲线、以电子计算机处理求出了5个红豆草品种的适宜辐射剂量。 In this paper, five different varieties of Radix Scutellariae seeds were irradiated with cobalt ~ (80) -γ-ray at different doses, the results significantly inhibited the growth of young roots and young shoots, reduced seed vigor and distorted and distorted chromosomes of root tip cells The types of chromosome single bridge, double bridge, multi-bridge, lagging chromosomes and micronuclei. According to the multi-target click model Y = 1- (1-e ~ (vD)) °, the suitable radiation dose of five varieties of sainfoin was obtained by computer processing.