THE LOWEST LIGHT INTENSITY OF COMPLEX LED MIXED RED AND FAR-RED LIGHT ON INHIBITION OF CHRYSANTHEMUM 'IWA NO HAKUSEN'

Y. Liao, Y. Takai, A. Kato, K. Suzuki, D. Zhuang, R. Ogasawara, T. Shimazu, E. Kawamoto, H. Fukui
Red (R) light of LED night break (NB) could inhibit floral bud differentiation on chrysanthemum cultivar ‘Jimba’, but not in cultivar ‘Iwa no hakusen’. Complex LED mixed red and far-red (R+FR) light of NB could inhibit floral bud differentiation on both cultivars. For the purpose of saving energy and using LED light effectively, we tested several treatments of different R+FR light intensities of NB lighting on cultivar ‘Iwa no hakusen’. The result showed that it could inhibit floral bud differentiation on ‘Iwa no hakusen’ by the NB of R+FR (630 nm + 735 nm) light which peak was at 0.15 + 0.15 µmol•m-2•s-1•nm-1 or 0.15+0.20 µmol•m-2•s-1•nm-1.
Liao, Y., Takai, Y., Kato, A., Suzuki, K., Zhuang, D., Ogasawara, R., Shimazu, T., Kawamoto, E. and Fukui, H. (2014). THE LOWEST LIGHT INTENSITY OF COMPLEX LED MIXED RED AND FAR-RED LIGHT ON INHIBITION OF CHRYSANTHEMUM 'IWA NO HAKUSEN'. Acta Hortic. 1037, 837-842
DOI: 10.17660/ActaHortic.2014.1037.111
https://doi.org/10.17660/ActaHortic.2014.1037.111
night break, floral bud differentiation
English

Acta Horticulturae