In vitro growth of Cymbidium plantlets cultured under superbright red and blue light-emitting diodes.
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Enhanced growth of Cymbidium plantlets cultured in vitro under red plus blue LEDs was demonstrated in a report by Tanaka et al. Light-emitting diodes as a radiation source for plants. Compared to conventional fluorescent lamps, LEDs have improved features, including smaller mass and volume, longer lifetime, and tailored spectrum ( Bula et al., 1991 Bula R.J. In the past few years, light emitting diodes (LEDs) have arisen as an alternative light source for plant tissue culture. Therefore, plant growth could be controlled by artificial light in the greenhouse and in vitro.įluorescent lamps have been the main light source commonly used for in vitro tissue culture. New York: Benjamin/Cummings Publishing Co, 2002. These responses depend on the photosynthetic photon flux density (PPFD), light quality, duration and photoperiod ( Taiz and Zeiger, 2002 Taiz L., Zeiger E. Green plants, which convert light energy into chemical energy via the process of photosynthesis, use light as a source of information for photoperiodism (night/day length), phototropism (light direction), and photomorphogenesis (light quantity and quality). Light is one of the most important factors in the regulation of plant growth and development. Os resultados também indicaram que o crescimento subsequente ao desenvolvimento de plântulas de crisântemo e morango provenientes do sistema WPT-LP foi igual e/ou melhor que o daquelas oriundas dos sistemas LP e tubo LED ou FL.Ĭrisântemo desenvolvimento crescimento LEDs densidade de fluxo de fótons fotossintético transferência de energia sem fio Esses resultados sugerem que, usando-se o sistema WPT-LP, tem-se uma economia de espaço de cultura considerável em comparação ao sistema convencional de iluminação descendente com lâmpadas fluorescentes.
Resultados similares também foram registrados em plântulas de morango. Os resultados demonstraram que peso fresco (1,42 g), peso seco (118,67 mg), altura da planta (5,68 cm), área foliar (3,59 cm 2) e conteúdo de clorofila (47,9 g g-1) de plântulas de crisântemo submetidas ao sistema WPT-LP foram maiores do que os daquelas submetidas a FL e tubo LED.
Também são apresentadas comparações entre crescimento in vitro de plântulas de crisântemo e morango com o novo sistema de iluminação: sistema LED - Uni-Pack (LP), tubo LED e luz fluorescente (FL).
Este estudo é o primeiro a combinar essa tecnologia com diodos emissores de luz (WPT-LP) para aplicação em cultura de tecido vegetal. The results also indicated that the subsequent growth and development of chrysanthemum and strawberry plantlets derived from WPT-LP system were either equal to or better than those from LP system under LED tube or FL.Ĭhrysanthemum development growth LEDs photosynthetic photon flux density wireless power transferĪ transmissão de energia sem fio tem sido usada recentemente para carregar baterias em dispositivos portáteis. Our results suggested that utilizing WPT-LP system saves the culture space considerably compared with the conventional downward lighting system with fluorescent lamps. Similar results were also recorded on the strawberry plantlets. The results showed that fresh weight (1.42 g), dry weight (118.67 mg), plant height (5.68 cm), leaf area (3.59 cm 2) and chlorophyll content (47.9 μg g -1) of chrysanthemum plantlets under the WPT-LP system were higher than those under FL and LED tube. We also present the comparison of the in vitro growth of chrysanthemum and strawberry plantlets under the new LED lighting system LED - Uni-Pack (LP) system LED tube and fluorescent light (FL). This is the first study to combine this technology with light-emitting diodes (WPT-LP) for plant tissue culture application.
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Wireless power transmission has been recently used to charge batteries in portable devices.
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