Effect of Supplementary LED Source of Light on Growth of Miniature Rose

• Published in: Nogyo Shisetsu (Journal of the Society of Agricultural Structures, Japan) Vol. 39; no. 2; pp. 113 - 120
• Main Authors: MIYAMOTO, Shingo, ASANO, Hiroomi, SERATA, Kazuhiro, UCHIGASAKI, Manzo
• Format: Journal Article
• Language: English; Japanese
• Published: The Society of Agricultural Structures, Japan 2008
• Subjects: flowers; LED; miniature rose; new shoots; supplementary light
• ISSN: 0388-8517; 2186-0122
• DOI: 10.11449/sasj1971.39.113

In recent years, indoor experimental researches concerning the crops cultivation using LED has been increased. Comparing with the usual lighting system used for cultivation, LED light has some advantages. It (LED) can increase the photosynthetic photon flux density by the adjacent irradiation. Moreover, the power consumption of the LED source of lights is lower than the conventional ones. In this research, the influence of LED element while using as a supplementary source of light on the development of flower bud of the miniature rose was examined. The result showed an increasing tendency of flowers, buds as well as new shoots with a level (p<0.005) of significance while using LED lights as the supplementary source of power along with the fluorescent lamps usually used for domestic uses. When the miniature rose were exposed to different optical quality, even the level of significance could not be obtained, a tendency of early flowering was observed while using LED lights as the supplementary source. Therefore, it can be concluded that supplementary LED source of power had positive effect on plant growth of miniature rose.