Use este identificador para citar ou linkar para este item: http://repositorio.ufla.br/jspui/handle/1/28750
Título: Variações anatômicas de Laelia purpurata var. cárnea cultivada in vitro sob diferentes intensidades e qualidade spectral de luz
Título(s) alternativo(s): Anatomical variations of Laelia purpurata var. cárnea in vitro cultured under different intensities and spectral quality of light
Palavras-chave: Orquídea
Propagação in vitro
Malhas fotoconversoras
Aclimatização
Orchid
In vitro propagation
Colored shade-nets
Acclimatization
Data do documento: Mar-2012
Editor: Universidade Federal de Santa Maria
Citação: SILVA JÚNIOR, J. M. da et al. Variações anatômicas de Laelia purpurata var. cárnea cultivada in vitro sob diferentes intensidades e qualidade spectral de luz. Ciência Rural, Santa Maria, v. 42, n. 3, p. 480-486, mar.2012.
Resumo: In vitro propagated orchid (Laelia purpurata var. cárnea) were maintained in a growth chamber in a greenhouse and subjected to different spectral intensities and quality of light, using different colored shade-net (blue, red and black). It was observed that the light intensity and spectral quality influenced significantly all the parameters analyzed at 120 days of cultivation. Plants cultivated under blue color shade net at growth chamber and greenhouse presented higher thickening of epidermis on the adaxial face (31.73 and 35.46µm), respectively, and were statistically different when compared with other treatments. It was observed a significant increase in the number of velamen cell layers in plant roots grown in the greenhouse, regardless of the color shade-net used when compared with plants cultivated at growth chamber. It was observed a higher differentiation of tissues (canopy, exodermis, cortex and vascular cylinder) in cross sections plant roots grown in greenhouse under blue shade-net.
URI: http://repositorio.ufla.br/jspui/handle/1/28750
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