Effects of low dose gamma irradiation on the germination and physiological activity of old red pepper ( Capsicum annuum L.) seed

묵은 고추종자의 발아와 생리활성에 미치는 저선량 방사선조사 효과

  • 김재성 (한국원자력연구소, 동위원소 방사선 응용연구팀) ;
  • 백명화 (한국원자력연구소, 동위원소 방사선 응용연구팀) ;
  • 이해연 (한국원자력연구소, 동위원소 방사선 응용연구팀) ;
  • 이영근 (한국원자력연구소, 동위원소 방사선 응용연구팀)
  • Published : 2001.12.30

Abstract

To observe the stimulating effects of low dose gamma radiation on the germination and physiological activity of germinating seeds of old red pepper (Capsicum annuum L. cv Jokwang and cv. Hongkwang), seeds were irradiated at the dose of $2{\sim}50 Gy$. The germination rate of irradiation group was higher than that of the control. Especially it was highest at the early stage of induction. The germination rate at 7 days after sowing in Jokwang and Hongkwang cultivar was high as 74% and 11% at 4 Gy and 8 Gy irradiation group, respectively. The seedling height of Jokwang cultivar was noticeably high at 4 Gy irradiation group and that of Hongkwang cultivar at 8 Gy irradiation group. The protein contents of seedlings from seeds irradiated with low dose gamma radiation of Jokwang cultivar increased at the late stage of induction and that of Hongkwang cultivar at the early stage of induction. Catalase and peroxidase activities of seedlings from seeds irradiated with low dose gamma radiation of Jokwang cultivar increased at 4 Gy irradiation group and that of Hongkwang cultivar at 8 Gy irradiation group.