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Effect of Light-emitting Diodes (LEDs) and Ventilation on the in vitro Shoot Growth of Eucalyptus pellita  

Kim, Ji-Ah (Biotechnology Div., Korea Forest Research Institute)
Moon, Heung Kyu (Biotechnology Div., Korea Forest Research Institute)
Publication Information
Journal of Korean Society of Forest Science / v.95, no.6, 2006 , pp. 716-722 More about this Journal
Abstract
Various light sources including LEDs (Light emitting diodes) affecting on shoot growth was examined using in vitro shoots of E. pellita. Generally, it appeared that ventilation treatment was the most important factor affecting on normal shoot growth, irrespective of irradiation sources. Ventilation resulted in better performance of the cultures under 100% blue LED radiation. These include better shoot growth, more number of leaves, more number of internodes, more number of axillary buds, and heavier dry matters. The highest total chlorophyll content was obtained under both cool-white fluorescent lamps and R5B5 (50% red LED + 50% blue LED). The value was $24.5{\mu}g/g$ and $20.1{\mu}g/g$, respectively. In addition, ventilation resulted in higher carotenoid content in all irradiation sources except 100% red LED radiation. In conclusion, shoot growth of E. pellita could be reached maximum by ventilation under R5B5 (50% red LED + 50% blue LED).
Keywords
Eucalyptus pellita; Shoot growth; Light-emitting diodes; Ventilation;
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Times Cited By KSCI : 3  (Citation Analysis)
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