植物工厂LED光质调控对芹菜生长及产量的影响

Effect of LED light quality control on celery growth and yield in plant factory

为探讨植物工厂中不同光质对芹菜生长的影响,本研究选用4种不同红蓝光配比的LED光源开展试验。结果表明,红光∶蓝光=3∶1的光质配比下,芹菜株高、茎粗、叶片数、单株鲜重、干重、地上部干重和地下部干重均最大,有利于芹菜的营养生长;红光∶蓝光=3∶1的光质配比可提高芹菜叶绿素含量,促进光合作用,提高光能转化率;红光∶蓝光=3∶1的光质配比有利于芹菜壮苗培育和产量的提高。综合各指标表明,红光∶蓝光=3∶1是适于植物工厂芹菜生长的光质配比。

In order to study the effect of different light quality ratios on celery growth in plant factory,in this study,four LED light sources with different ratio of red and blue light were selected for the experiment.The experiments showed that under the light quality ratio of red light∶blue light=3∶1,the plant height,stem diameter,leaf number,plant fresh weight,dry weight,aboveground dry weight and underground dry weight were the largest,which was beneficial to the vegetative growth of celery.The light quality ratio of red light∶blue light=3∶1 was beneficial to the increase of chlorophyll content in leaves,which could promote photosynthesis and improve the utilization rate of light energy.The light quality ratio of red light∶blue light=3∶1 was beneficial to the growth of strong seedlings and increase the yield of celery.According to the comprehensive indexes,red light∶blue light=3∶1 is the suitable light quality ratio for celery growth in plant factory.