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79/4—263—1高粱种子在-196℃条件下用~(60)Coγ射线辐照,与常温辐照处理进行比较。在相同剂量范围内,极低温条件下辐照,M_2代成熟期及籽粒品质性状的诱变效率未见提高。在常温条件下辐照,25Gy处理的诱变效率最佳。
79 / 4-263-1 Sorghum seeds were irradiated with ~ (60) Coγ-ray at -196 ℃ and compared with the irradiation at room temperature. Under the same dose range, the mutagenic efficiency of M_2 generation maturity and grain quality traits did not increase under the condition of very low temperature. Irradiation at room temperature, 25Gy treatment of the best mutagenic efficiency.