감마선 처리가 인삼 종자의 개갑, 발달, 생존 및 생육에 미치는 영향

• 영문명: Effect of Gamma-Irradiation on Seed Dehiscence, Development, Survival, and Growth in Panax ginseng
• 발행기관: 한국육종학회
• 저자명: 이정우(Jung-Woo Lee) 조익현(Ick-Hyun Jo) 홍지은(Chi-Eun Hong) 방경환(Kyong-Hwan Bang) 김장욱(Jang-Uk Kim)
• 간행물 정보: 『한국육종학회지』Vol.52 No.1, 1~8쪽, 전체 8쪽
• 주제분류: 농수해양 > 기타농수해양
• 파일형태: PDF
• 발행일자: 2020.03.30

영문 초록

Ginseng (Panax ginseng) is a self-fertilized crop, and all ginseng cultivars developed until now have been bred by pure-line selection. Ginseng has few genetic variations and lacks diversity in genetic resources. To obtain genetic resources with useful traits, mutations must be artificially induced. In this study, indehiscent seeds from ginseng landrace were treated with 20 to 400 Gy of gamma rays for 24 hours to determine the optimal dose for mutation breeding. Results showed no significant differences in seed dehiscence rates among the 0 Gy (control) to 80 Gy groups. However, above 100 Gy, the dehiscence rate sharply decreased as the radiation dose increased. Seed development below 40 Gy was superior to that of control but declined rapidly above 60 Gy. The seedling survival rate decreased significantly at 60 Gy (less than 50% compared to that of the control), and most seeds did not survive above 100 Gy. We observed a significant reduction in the growth of seedlings irradiated above 60 Gy. The above results suggest that a suitable gamma-ray dose for inducing mutagenesis in indehiscent ginseng seeds is 40 Gy.

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키워드

Panax ginseng Gamma-ray Mutation Indehiscent ginseng seed