Enhancing Plant Growth: The Importance of LED Lighting in Greenhouse and Hydroponic Systems
Bildiriler > Tam Metin Bildiri
Yazarlar: Maghfirah Hasanah, Khairul, Öztekin, Tuğba, Lale AKTAŞ
Zenodo (CERN European Organization for Nuclear Research), , , Uluslararası, Tam Metin Bildiri
Özet
Integrating light-emitting diode (LED) lighting systems in greenhouse and plant hydroponic culturerepresents a significant stride towards sustainable agriculture. This study explores the pivotal role ofLED technology, particularly for purple, blue, and red light in nurturing to enhance plant growth anddevelopment. Plant photoreceptors absorb different wavelengths of light and activate a signaling cascadefrom upstream to downstream that will activate several complex physiological processes andmorphogenesis. Red light (R, 620–700 nm) is recognized by phytochrome which controlsphotomorphogenesis via promoting vegetative and generative growth and development includinggermination, flowering and fruiting. On the other hand, blue light (B, 445–500 nm) is recognized bycryptochromes which stimulate photosynthesis, chlorophyll - carotenoids biosynthesis, and stomatalopening. In terms of nutritional quality, applying B light to plants can increase the accumulation ofanthocyanins, carotenoids, and ascorbic acid contents. R lights determine better growth compared to Blights. Furthermore, adding B light to R light as a combination at low intensity can prevent excessiveetiolation and reactivate chlorophyll synthesis. In addition, it has been reported that the combination ofR and B light increases the development of photosynthetic apparatus, accumulation of biomass, formingmore compact plant structure and inhibits flowering. The efficiency of absorption and assimilation ofmacro and micronutrients in hydroponic systems is also stimulated by the combination of R and B light.Combining R and B in balanced percentages can form purple light fixtures. Purple light is commonlyused in the early stages of growth to induce seed germination, cell division and shoot regeneration. Acombination of R and B light for LED lighting in the greenhouse and hydroponic culture systems mayprovide improved control of the crop growing environment and reduce pollutant emissions, producinga homogeneous and high-quality crop, time efficient and low-cost production with predictable results.Through this farming strategy, LED-equipped facilities maximize spatial efficiency and become asolution for obtaining efficient yields and high nutritional value, thus providing a strong case forintegrating them into future modern agricultural practices.