Enhanced Growth and Development of Cymbidium and Phalaenopsis Plantlets Cultured In Vitro Under Light-Emitting Diodes
The usefulness of the light-emitting diodes (LEDs) in the growth of orchid plantlets is presented in this chapter. The construction of the Culture Pack-Rockwool (CP-RW) system and the LED Pack is described. When Phalaenopsis and Cymbidium plantlets were cultured using the CP-RW system under different blue to red LED ratios, the growth of plantlets was enhanced than those under plant growth fluorescent lamps (PGF). The positive effects of LED irradiation on plant growth indicate that LEDs will be a major light source for use in a wide range of micropropagation systems.
Key wordsCymbidium Light-emitting diodes Phalaenopsis Photosynthetic rate Culture Pack-Rockwool system Plant growth fluorescent lamps
This chapter was supported by the doctoral thesis “In vitro growth and physiological of some horticultural plantlets cultured under red and blue led light-emitting diodes (LEDs)” of Duong Tan Nhut at Kawaga University, Japan, 2002.
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