Chlorophyll Fluorescence of Green Leaves by Light Quality in White Cucumber Seeding
Through further development of QE6500 fiber spectrometer in the determination of chlorophyll fluorescence such functions, research monochromatic light quality and mixing of light quality on cucumber chlorophyll fluorescence, in order to make breakthrough on the light quality on plant photosynthesis impact and plants fill light.The objective of this study was to analyze the effect of light qualifies on Fp685、 Fp735、 Fp685/Fp735、 F685、 F735、 F685/F735 and Y(Ⅱ)of chlorophyll fluorescence in green leaves green leaves induced by blue, green and red light-emitting diode (LED) in northern white cucumber seeding.With the increase of light intensity, the P in OJIP of chlorophyll fluorescence curve showed a fast rising.Fp685 were in the order of red＞blue＞green, but Fp735 were in the order of green＞ red≈ blue.However, the order of blue＞ green≈ red were observed for the ratio of Fp685/Fp735.The point of P appeared earlier under the mixed light than under single light, and Pmix＞Paingle.The ratios of F685/F735 always lower under the mixed lights than under single light.The order of Y(Ⅱ)green＞ Y (Ⅱ)red＞ Y(Ⅱ)blue were observed for the yield of PS Ⅱ by single light.Conclusion:The photosystem activity of cucumber under blue light is the highest, in cucumber the photosynthetic capacity of the strongest is under green, plants fill light in red and blue mixed make green light will obvious improve the capacity of the plant photosynthesis.It is usable for QE6500 fiber spectrometer in the determination of chlorophyll fluorescence.
NETL
NSTL
万方数据
维普
