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Effects of Proton Beam Irradiation on Germination and Growth of Tobacco and Rice Plants  

Lyu Jae-Il (Division of Plant Production Sciences, College of Agriculture and Life Sciences, Sunchon National University)
Sarantuya Gendaram (Division of Plant Production Sciences, College of Agriculture and Life Sciences, Sunchon National University)
Chai Jong-Seo (Cyclotron Application Lab., Korea Institute of Radiological & Medical Sciences (KIRAMS))
Kim Jae-Hong (Cyclotron Application Lab., Korea Institute of Radiological & Medical Sciences (KIRAMS))
Yang Tae-Gun (Cyclotron Application Lab., Korea Institute of Radiological & Medical Sciences (KIRAMS))
Lee Min-Yong (Cyclotron Application Lab., Korea Institute of Radiological & Medical Sciences (KIRAMS))
Yang Deok-Chun (College of Life Science & Center for Oriental Medicinal Materials and Processing, Kyung Hee University)
Bae Chang-Hyu (Division of Plant Production Sciences, College of Agriculture and Life Sciences, Sunchon National University)
Publication Information
Korean Journal of Plant Resources / v.18, no.3, 2005 , pp. 462-469 More about this Journal
Abstract
Effects of proton beam irradiation on seed germination and growth pattern of tobacco (Nicotiana tabacum L. cv. BY-4; N. plumbaginifolia) and rice (Oryasativa L.) plants were estimated to develop the efficient conditions of irradiation. Seed germination rate was decreased by increasing the proton beam the current and the beam irradiation time in both tobacco and rice seeds. The beam irradiation conditions showing $50\%$ germination were over 60 sec at 10 nA, approximately 5 sec at 100 nA and at 500 nA beam current in tobacco seeds. And the conditions of $50\%$ germination were 60 sec at 10 nA, and 100 nA and 30 sec at 500nA in rice (cv. Dongjin 1) seeds. The growth of irradiated plants was decreased, but significant difference in morphological changes was not observed by the proton beam treatment. The proton beam is able to use as a mutagen, but some of the factors including beam size and beam detector-system must be established for efficient usage of the beam.
Keywords
Germination; Nicotiana plumbaginfolia; Oryza sativa; proton beam;
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