The Effect of Heat Treatment on Biological Response and Mutation Frequency of Gamma Irradiated Rice Seeds

수도종자의 방사선조사에 있어서 열처리의 효과

  • 한창열 (원자력청 방사선 농학연구소) ;
  • 원종락 (원자력청 방사선 농학연구소) ;
  • 최광태 (원자력청 방사선 농학연구소)
  • Published : 1971.12.01


For the purpose of finding out the effect of heat treatment on biological response and mutation rate, rice seeds were heat treated before and after gamma irradiation. 1. At a dose of 20 KR, pre-irradiation heat treatment showed reduced biological damage and increased mutation rate as compared with non-heat treatment. 2. Mutation frequency was increased in post-treatment of heat shock than in pre-irradiation heat treatment and non-heat treatment. 3. Pre-irradiation heat treatment at 6$0^{\circ}C$ for 30 minutes markedly reduced the biological damage and increased the mutation rate. 4. Mutation spectrum in heat treatment was different from non-treatment.