Analysis of flowering mechanism of long-day plants for cut-flower with using a LED lamps

利用发光二极管(LED)研究了光质对满天星开花的影响。在远红光(FR)的长日照条件下可以观察到开花和开花，而在短日照条件下观察不到开花。与单施FR相比，FR+红R对开花和花芽的促进作用更强。虽然一般情况下，R抑制长日照植物的开花，但一定强度的R可能是有效促进开花所必需的。相比之下，添加蓝(B)的FR不能有效地诱导开花和开花。

The effects of light quality on the flowering of Gypsophila paniculata were investigated using light-emitting diodes (LEDs). Flowering and flower budding were observed under long-day conditions with far-red (FR), while no flowering was observed under short-day conditions. Promotion of flowering and flower budding was increased under FR supplemented with red R compared to FR alone. Although generally R inhibits flowering in long-day plants, a certain intensity of R may be necessary for effective promotion of flowering. In contrast, blue (B)supplementation of FR was not effective in inducing flowering and flower budding.