LED光质对小白菜生长及品质影响的研究进展

Research Progress on the Effect of LED Light Quality on the Growth and Quality of Chinese Cabbage

光环境是植物生长发育的基本环境因素,光质调控是设施栽培的一项关键技术。阐述了LED光源在设施栽培领域的应用和主要特征,介绍了小白菜生长发育过程中的光质调控方法,深入分析了单色光质和复合光质对小白菜形态、根系、生物量、光合色素以及品质的影响,展望了光质作用机理和光控作物生长模型的研究思路。总体上,红蓝光是小白菜生长的良好光源,小白菜对LED光质的响应具有一定的特殊性,不同品种小白菜对光质响应也存在差异,这可能与光质的实现条件也有关,深化光质调控机理研究具有重要意义。

Light environment is the basic environmental factor of plant growth and development,and light quality regulation is a key technique of facility cultivation.The application and main characteristics of LED light source in the field of facility cultivation were expounded,and the methods of light quality regulation during the growth and development of Chinese cabbage were introduced.Then,the effects of monochromatic and compound light quality on morphology,root system,biomass,photosynthetic pigment and quality of Chinese cabbage were deeply analyzed,and the research idea of the action mechanism of light quality and the growth model of light-controlled crops were prospected.On the whole,red and blue light were good light sources for the growth of Chinese cabbage.Chinese cabbage had a certain particularity in response to LED light quality,and different varieties of Chinese cabbage also had differences in response to light quality,which could be related to the realization conditions of light quality.Therefore,it was of great significance to deepen the research on the mechanism of light quality regulation.