Effects of Sunlight Spectrum on Plant Physiology
Keywords:
Light spectrum, photosynthesis, blue light, red light, LED grow light, plant physiologyAbstract
Light is an important factor in plant growth, including white taro, because light intensity affects the rate of photosynthesis. This study aims to evaluate the effect of red and blue light spectrum from LED growlights on the growth of Pakchoy (Brassica rapa subsp. chinensis) plants. The method used was the collection of scientific articles through Google Scholar that included full text. Data were analyzed through reduction, presentation, and drawing conclusions. The results showed that blue light was more effective in increasing plant height and number of leaves through optimizing photosynthesis and stomatal regulation, while red light supported hypocotyl elongation and pigment content. Higher light intensity was also shown to increase chlorophyll content, accelerating the rate of photosynthesis. This study advances agronomy by providing specific guidelines for the use of optimal light spectrum and intensity to increase plant productivity through LED lighting technology, providing practical insights for agricultural practitioners to maximize plant growth.
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Copyright (c) 2025 Erwin Angriawan, Galang Ega Mawan, Abdul Jalil, Dwika Nano Hariyanto, Bagus Tripama, Hudaini Hazbi
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