Physiological active substances and fruit affected by light quality

研究了遮荫对MdTFL1和MdFT1基因表达及花芽形成率的影响。遮光处理MdTFL1的表达量在整个测量期内均高于无遮光处理。遮荫处理显著降低了花芽形成率。研究了夜间蓝光或红光LED照射对葡萄脱落酸（ABA）代谢和花青素形成的影响。这些结果表明，夜间使用红色LED会影响内源ABA浓度，但与花青素形成不一致，而蓝色LED会影响花青素形成相关基因的表达，但对内源ABA的影响不显著。

Effects of shading on the expression of MdTFL1 and MdFT1 genes and the rate of flower bud formation were investigated. In shading treatment, the expression of MdTFL1 was higher than that in non-shading treatment throughout the measuring dates. The shading treatment significantly decreased the flower bud formation rate. We examined the effects of the irradiation of light-emitting diode (LED) of blue or red at night on abscisic acid (ABA) metabolism and anthocyanin formation in grapes. These results suggest that red LED application at night influences endogenous ABA concentrations but does not coincide with anthocyanin formation, and blue LED influences gene expression related to anthocyanin formation, but it does not influence endogenous ABA significantly.