Effect of Light on Growth and Development of Protocorm and Seedling of Cymbidium seidenfadenii (P.J. Cribb & Du Puy) P.J. Cribb

Authors

  • Anupan Kongbangkerd
  • Sakunrat Thongdonngaw
  • Somjit Homchan
  • Phithak Inthima

Abstract

In vitro protocorms and seedlings of Cymbidium seidenfadenii (P.J. Cribb & Du Puy) P.J. Cribb) were cultured on Murashige and Skoog (MS) medium supplemented with 0.1 mgL-1 TDZ, and 1.0 mgL-1 NAA. The cultures were incubated under different light sources; cool white LED, warm white LED, cool white fluorescent, warm white fluorescent, blue, yellow, red, and green fluorescent light for 12 weeks. The results found that the blue light fluorescent could induce the highest number of PLBs (16.0protocorms) which was about 1.5-3.1 folds higher than other light sources, whereas the highest number of shoot buds (2.1shoot buds) could be noticed under the cool white fluorescent when using protocorms as explants. Seedlings explants were also incubated under different light treatments. The results showed that both blue light and cool white fluorescent could promote highest PLBs and shoot buds no statistically significant difference with non - significant difference.Keyword: Cymbidium seidenfadenii (P. J. Cribb & Du Puy) P. J. Cribb, Light, Growth

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2017-06-29

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