Gamma greenhouse: a chronic facility for crops improvement and agrobiotechnology

Gamma greenhouse: a chronic facility for crops improvement and agrobiotechnology. In: Advancing Nuclear Research and Energy Development: Proceedings of the International Nuclear Science, Technology & Engineering Conference 2013 (iNuSTEC2013). AIP Publishing, Kuala Lumpur, Malaysia, pp. 32-37. ISBN 9780735412163 (2014)


Gamma irradiation is one of the most common procedures in plant mutagenesis and agrobiotechnology
activities. The procedures consist of chronic and acute gamma radiation. Generally, 60Co and 137Cs are gamma radiation sources for radiation processing with relatively high energy (half-life 5.27 years for 60Co and 30.1 years for 137Cs). The energy associated with gamma radiation is high enough to break the molecular bonds and ionize atoms without affecting structure of the atomic nucleus (avoiding induction of radioactivity). The Gamma Green House (GGH) is the only chronic irradiation facility in Malaysia, located at Malaysian Nuclear Agency (Nuclear Malaysia). GGH is used for induction of mutation in plants and other biological samples at low dose radiation over period of time depending on the nature and sensitivity of the plant species. The GGH consist of circular green house with 30 meters radius, control room and irradiator with interlock system. The irradiator produces low dose gamma radiation derived from Caesium-137 radioactive source. The biological samples can be exposed to low dose radiation in days, weeks, months or years. The current irradiation rate for GGH is 2.67 Gy/hr at 1 meter from the source. Chronic gamma irradiation produces a wider mutation spectrum and useful for minimizing radiation damages towards obtaining new improved traits for research and commercial values. The prospect of the gamma greenhouse is its uses in research, educations and services on induced mutation techniques for the improvement of plant varieties and microbes. In generating awareness and attract users to the facility, Nuclear Malaysia provides wide range of irradiation services for plant species and mutagenesis consultancies to academicians, students scientists, and plant breeders, from local universities, other research institutes,and growers. Charges for irradiation and consultancy services are at nominal rates. The utilization activities of the gamma greenhouse mainly cover Research and Development, Research Collaboration, Exchange of Information, Irradiation Services, Training Programs, Education, Exchange of Scientists and Seminars/ Conferences.

Item Type: Book Section
Keywords: Agrobiotechnology, Chronic irradiation, Mutagenesis, Somaclonal variation, Green House Gamma, Gamma irradiation
Taxonomy: By Subject > Applied Sciences > Biology
By Subject > Applied Sciences > Food Technology
By Subject > Plantation & Agrotechnology > Crop Biotechnology
Local Content Hub: Subjects > Applied Sciences
Depositing User: Mohd Fadhli Samsudin
Date Deposited: 09 Apr 2021 09:25
Last Modified: 12 Apr 2021 02:37
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