To investigate the effects of NB light quality on flowering response, plants were grown under the following conditions: W-SD, W-SDINB-B, W-SDINB-R, or W-SDINB-FR(Fig. 1A and Table 2). Under W-SD, W-SD/NB-B, and W-SD/NB-FR conditions, all of the plants formed flower buds. In contrast, plants grown under the W-SD/NB-R treatment failed to form flower buds(T ble 2)