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目的研究红蓝单色光对植物生长的影响,探索其作为植物生长光源的可行性。方法采用白、红和蓝发光二极管的光照条件培养油麦菜,分析和比较油麦菜植株在不同光质下的生长状态、生理特性和养分含量的差异。结果红光促进油麦菜茎叶径向生长,蓝光利于其茎叶横向生长和光合色素合成;油麦菜在全红光下不能正常生长,5%20%蓝光比例能提高其光合和蒸腾速率、光合色素含量、生物量和大量元素含量,改善其荧光特性。25%50%蓝光比例使光合色素含量进一步增加,但地上生物量明显下降,根冠比显著增加;红蓝单色光增加了单位面积或功率的生物产量。结论红蓝发光二极管可用于培养油麦菜,且蓝光比例为10%的光照条件最有利于油麦菜生长。
Abstract：Objective To investigate the characteristics of higher plant grown in red and/or blue light and test the capability of red and/or blue light emitting diodes(LEDs) used as the artificial lights for plant growth in controlled ecological life support system(CELSS).Methods Lettuce(Lactuca sativa var.Youmaicai) was cultivated in sole white LED,sole red LED and combined red and blue LEDs,respectively.Its growing status,physiological characteristics and the content of nutrients were evaluated,which were adopted to select the best combination of red and blue LED for plant growth.Results Red light promoted the radial growth of lettuce plants,and blue light was propitious to their transverse extension and synthesis of chlorophyll and carotenoid;lettuce plants couldn't grow normally in sole red light;with the gradual increase of blue light proportion(5%20%),there were some active effects on the growth of lettuce plants,for instance,the improvement of photosynthesis,transpiration and fluorescence(Fo,Fv/Fm and qN),the increasing of contents of chlorophyll,carotenoid and nutrients and the enhancement of total biomass;the adverse effects of blue LED on the growing of lettuce plants appeared gradually with the addition of blue light(25%50%).Its biomass of shoot decreased significantly,which induced the increase of the ratio of root/shoot.Conclusion The combined red and blue LEDs is propitious to lettuce(var.Youmaicai) growth and the best lighting condition is the combined 90% red and 10% blue light.
[1]GUO Shuangsheng,TANG Yongkang,ZHU Jingtao,et al.Development of a complex experimental system for studies ofcontrolled ecological life support technique[J].Space Medi-cine&Medical Engineering,2006,19(5):350-353.
[2]GUO Shuangsheng,AI Weidang,ZHAO Chengjian,et al.Selection of light source used for plant cultivation in controlledecological life support system[J].Space Medicine&MedicalEngineering,2003,16(S):490-493.
[3]Gao HL,Zhu DC.The relations of plant growth and lighting[J].Lamp and Lighting,2005,29(4):1-4.
[4]Mou NN,Gao YK.Review of applying light emitting diodes(LEDs)in plant tissue culture[J].Propagation Technique,2000,14(4):220-222.
[5]Bula RJ,Morrow RC,Tibbitts TW,et al.Light-emitting di-odes as a radiation sources for plants[J].Hortscience,1991,26(2):203-205.
[6]Barta DJ,Tibbitts TW,Bula RJ,et al.Evaluation of light-ing-emitting-diodes characteristics for a space-based plant irra-diation source[J].Advances in Space Research,1992,12(5):141-149.
[7]Takita S,Okamoto K,Yanagi T.Computer simulation of PPFdistribution under blue and red light source for plant growth[J].Acta Horticulturae,1996,440:286-291.
[8]Wei LL,Yang QC,Liu SL.Review on research and develo-ping trends of light-emitting diode in plant factory[J].Chi-nese Agriculture Science Bulletin,2007,23(11):408-411.
[9]Xu JZ,Li TK,Ge DY,et al.Study advances on selective ab-sorption to light wavelengths in the development of plants[J].Hebei Journal of Forestry and Orchard Research,2002,17(2):180-184.
[10]Goins GD,Yorio NC,Sanwo MM,et al.Photomorphogene-sis,photosynthesis and seed yield of wheat plants grown underred light-emitting diodes(LEDs)with and without supplementblue lighting[J].Journal of Experimental Botany,1997,48(12):1407-1410.
[11]Brown CS,Schuerger AC,Sager Jc.Growth and photo mor-phogenesis of pepper plants under red light-emitting-diodeswith supplemental blue or far-red lighting[J].Journal of theAmerican Society for Horticultural Science,1995,120:808-813.
[12]Bukhov N,Makarova V,Bondar V,et al.Photosynthetic ap-paratus in primary leaves of barley seedling grown under blueor red light of very lowphoton flux densities[J].Photosynthe-sis Research,1999,60(2-3):179-189.
[13]Fang W,Jao RC,Lee DH.Artificial lighting apparatus foryoung plants using light emitting diodes as light source[P].US Patent,US6474838B2.2002.
[14]Okamoto K,Yanagi T,Takita S,et al.Development of plantgrowth apparatus using blue and red as artificial light source[J].Acta Horticulturae,1996,440:111-116.
基本信息:
DOI：10.16289/j.cnki.1002-0837.2010.03.001
中图分类号:S636.2
引用信息:
[1]唐永康,郭双生,艾为党等.不同比例红蓝LED光照对油麦菜生长发育的影响[J].航天医学与医学工程,2010,23(03):206-212.DOI:10.16289/j.cnki.1002-0837.2010.03.001.
基金信息:
“863”基金资助(2008AA12A219)