不同光质对三色堇生长发育的影响

不同光质对三色堇的生长发育的影响较大,本文研究了红、黄、蓝、紫、绿、白六种光质对其花期、叶面积、株高、冠幅等生理特征的影响.结果表明：红光能够诱使三色堇提早开花,开花周期缩短,蓝光能够诱使推迟开花,开花周期延长.红光有助于三色堇有机物的积累,绿光抑制有机物的积累.绿光促进株高生长,紫光抑制株高生长.三色堇在蓝、紫、绿光条件下总叶面积大,红光最小.

Effects of Different Light Quality on the Growth and Development of Viola Tricolor

Different light quality have different effects on the growth and development. This paper studies the different affects of the red, yellow, blue, purple, green and white on Viola tricolor＇ s flowering, leaf area, plant height and crown width. The results show that the red light could induce Viola tricolor to blossom earlier, and short the cycle time of flowering. The blue light could induce Viola tricolor to blossom lately and delay the cycle time of flowering. The red light could help Viola tricolor to accumulate the organic matter, and the green light could inhibit accumulation of organic matter. The green light could promote the growth of plant height, the purple light could inhibit the growth of plant height. Viola tricolor＇ s leaf area will be large on the condition of blue, purple and green lights, and smaller on the condition of red light.