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期 刊 ：中国中药杂志 2007年 32卷 11期 页码：1016.

关键词：薏苡；γ射线；诱变效应；

Keywords:Coix lacryma-jobi var.ma-yuen, gamma-rays, mutagenic effect,

摘 要 ：目的：研究γ射线对薏苡诱变效应。方法：用薏苡干种子作为诱变材料,以M₁代发芽率、成苗率、苗高、根长为生理效应指标,以M₂代叶绿素突变为诱变效应指标进行了相关诱变研究。结果：γ射线对幼苗生长有明显的抑制作用,具有较强的诱发叶绿素突变的能力。结论：γ射线是一种对薏苡有效的诱变剂。薏苡干种子诱变时γ射线的适宜剂量为450 Gy。

Abstract:Objective: To study the mutagenic effect of gamma-rays on Coix lacryma-jobi var.ma-yuen. Method: Physiological and mutagenic effects of gamma-rays on C. lacryma-jobi var.ma-yuen dormant seeds were studied.The germination percentage, seeding survival, seeding height and root length of M₁ plants and the frequency of chlorophyll mutation in M₂ generation were selected as criteria. Result: The gamma-rays showed obvious inhibitory action to the seedling growth, and a strong ability in inducing the chlorophyll mutation. Conclusion: The gamma-rays is one kind of C. lacryma-jobi var.ma-yuen effective mutagen. The appropriate dose of gamma-rays is 450 Gy for C. lacryma-jobi var.ma-yuen dormant seeds.

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