Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/58848
Title: Impact of monochromatic lights on the in vitro development of Cattleya walkeriana and effects on acclimatization
Other Titles: Impacto de luzes monocromáticas no desenvolvimento in vitro de Cattleya walkeriana e seus efeitos na fase de aclimatização
Keywords: Light emitting diode - LED
Light length
Micropropagation
Orchidaceae
Ornamental plants
Comprimento luminoso
Micropropagação
Plantas ornamentais
Issue Date: 2023
Publisher: Sociedade Brasileira de Floricultura e Plantas Ornamentais
Citation: NADAL, M. C. et al. Impact of monochromatic lights on the in vitro development of Cattleya walkeriana and effects on acclimatization. Ornamental Horticulture, [S.l.], v. 29, n. 2, p. 238-248, 2023.
Abstract: Light quality is an important factor for the adequacy of plant production through plant tissue culture, as it directly interferes with morphogenesis and photosynthetic capacity of explants. The objective of this study was to analyze the impact of monochromatic lights such as light emitting diode (LED) on the in vitro development of Cattleya walkeriana G. and their effects on acclimatization. The plants were developed in vitro under the colors of green, blue, yellow, red, 2 red:1 blue, and white LED lights. For in vitro cultivation, Knudson medium was used, supplemented with 20 mg L-1 sucrose, 5.5 mg L-1 agar, 2% activated charcoal, 100 mL coconut water, and pH 6.0. For ex vitro cultivation, the plants were acclimatized in styrofoam trays containing sphagnum as a substrate. In general, the supplied light lengths impactedin vitro growth and acclimatization analyses. There was influence on the cuticle thickness of plants in vitro. Chlorophyll and carotenoid contents were not significant. We can conclude that light lengths formed by 2 red:1 blue, red and yellow LEDs can be indicated for better performance in the production of C. walkeriana. The 2 red:1 blue and red LEDs provide superior in vitro development than the others, with gains for the species in acclimatization. The yellow LED provided a possible in vitro hardening, which ensured the greatest success of the seedlings during acclimatization.
URI: http://repositorio.ufla.br/jspui/handle/1/58848
Appears in Collections:DAG - Artigos publicados em periódicos



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