A research group led by Associate Professor Ko Yamori of the Ecological Harmony Agricultural Organization, Graduate School of Agriculture and Life Sciences, University of Tokyo, said that the flowers will last longer and be kept beautiful by shining upward light from the roots on the potted roses in the room. I found out.
According to the University of Tokyo, various studies have been conducted on how to keep cut flowers beautiful, but the management method of potted plants placed indoors has not been clarified so much, and the indoor light is insufficient and the flowers are inadequate. It was not uncommon for them to fall quickly.
The intensity of light and the irradiation time have a great influence on the flowering of plants.Since the light in the room is weak, it is necessary to supplement it with lighting equipment, but in order to illuminate from above, it is necessary to hang the equipment from the ceiling or install a stand light, which is troublesome and spoils the appearance. Often.In addition, the leaves at the bottom of the plant may die without being exposed to light.
Therefore, the research group applied LED (light emitting diode) upward lighting from the root to the potted roses placed in a dim room, and investigated the state of photosynthesis. The lower leaves became more active than when illuminated from above. It turned out that.There was no significant difference between the upper and middle leaves, regardless of whether they were exposed to light from above or below.
Plants are said to have the effect of healing the human mind.The research group thinks that the upward lighting can make the roses last longer and brighten people's hearts in hospitals and rehabilitation facilities.
Paper information:[Hort Science] Upward LED lighting from the base suppresses senescence of lower leaves and promotes flowering in indoor rose management
