This research explored the biological radiation effects, various characteristics, and mutagenic effect of medicinal and consumable dual-purpose Lilium lancifolium. [Method]Using Hunan Longshan Lilium lancifolium as test material, 4 different doses of 60Co-γ, radiation processing in 0-3 Gy were used to treat bulb and to analyze the radiation characteristics and variations of progeny. [Result]After the seedlings were treated with 0, 1, 2, and 3 Gy 60Co-γ, the seedling rates were 100, 100, 60, and 0%, respectively. Mutagenesis of the first vegetative generation Lilium lancifolium (VM|) appeared to be more visibly radiation-damaged; also, the plant height, stem diameter, builbil number per plant, and fresh bulb weight decreased as the irradiation dosage increased. The three consistent variations of the second vegetative generation LJlium lancifolium (VM2), plant height, builbil number per plant, and bulb weight, displayed clear separations. By the 1 Gy 60Co-γ, treatment, large variations amongst the characteristics were detected. [Conclusion]The appropriate dosage of ray was 2 Gy 60Co-γ, for Lilium lancifolium bulb. Using 60Co-γ, ray radiation mutagenesis displayed obvious effects on Lilium lancifolium, in which one of the superior Lilium lancifolium variant strains could be selected.%[目的]探索药食兼用型卷丹百合辐射诱变的生物学效应、变异特点.[方法]以湖南龙山卷丹百合为材料,用0～3 Gy4个不同剂量60Co-γ射线辐射处理其鳞茎,分析其辐射后代的性状表现及变异情况.[结果]经0、1、2、3Gy 60Co-γ处理的成苗(株)率分别为100％、100％、60％和0.诱变卷丹百合第1营养世代(VM1)出现较明显的辐射损伤,其株高、茎粗、单株珠芽数、单株鳞茎鲜重均随着辐照剂量的增加而降低.第2营养世代(VM2)的株高、单株珠芽数和单株鳞茎重等性状出现分离,且三者的变异具有一致性,均以2 Gy60Co-γ处理的变幅较大.[结论]用60Co-γ射线辐射诱变卷丹百合有明显效果,适宜诱变剂量为2 Gy60Co-γ；选择获得1株优良卷丹百合变异株.
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