Irradiation Studies of LED Light Spectra on the Growth and Development of Potato (Solanum tuberosum L.)

Abstract

The study aimed to explore the impacts of distinctive qualities of the LED light (such as to low power consumption, lesser production costs, longer operational lifetime and cool light emission with specific monochromatic wavelength) on potato (Solanum tuberosum L.) growth and development including plant height, number of leaves, root length, fresh and dry weight etc. The accumulation of phyto-pigments, soluble proteins and sugars, free radical scavenging activity and overall tuber yield were also evaluated. Enhanced plant height with increased diameter and branching was observed with the plant growing under the B100 and R30B70 LED light combination. Similarly, total number of leaves, leaf surface area, health index, phyto-pigments and tuber yield of potato was also significantly increased as compared to the plant growing under the W100 as control. Soluble proteins and sugar content and free radical scavenging enzyme activity were also significantly enhanced in the R30B70 LED light combination. Tubers yield per plants were also enhanced under the RB combination of the LED light. The current study indicated that the combination of R and B LED lights proved better for plant growth and development in a controlled environment and the R30B70 is the best combinational spectra for increased growth and tuber yield of potato plants. Therefore, the precise management of the irradiance and wavelength may hold promise in maximizing the economic efficiency of potato production, and quality of this important vegetables grown in controlled environments.

LED Light Pre-Treatment Improves Pre-Basic Seed Potato (Solanum tuberosum L. cv. Golden King) Production in the Aeroponic System

“…For plants growing under the combined LED blue and red range, increased assimilation rates are efficiently partitioned into underground tubers. That could explain why the majority of large microtubers were discovered in the red-blue spectrum [16,58,60]. These findings partially support our current study (Figures 2 and 3).…”

Production of Potato (Solanum tuberosum L.) Seed Tuber under Artificial LED Light Irradiation in Plant Factory

“…Enhanced assimilate rates are efficiently partitioned into underground tubers in plant growing under the combined LED blue and red spectrum. This may be the explanation for why most large micro-tubers were found in the combined spectrum of red and blue [ 49 , 51 ].…”

Effect of Varying Color LED Lights on Porang (Amorphophallus muelleri) Bulbil Seed Germination and Porang Plant Vegetative Growth Phase

“…In recent years, light-emitting diodes (LEDs) have been utilized in innovative methods, allowing for plant-targeted development and enhancing quality and productivity concerning environmental control due to LED light's narrow spectral bands and controllable intensity and duration. Success in the LED lighting industry enables using monochromatic wavelengths or their combinations in the red and blue light regions to optimize plant growth and development by providing an efficient light spectrum at the absorption peak of photosynthetic pigments [11,[15][16][17][18][19][20].…”

“…To optimize plant growth, extensive research has been conducted on applying red, blue, and their combination in various tubers [15][16][17][18][19][20]. In response to light, as an external cue recognized by plants and translated into internal cues, endogenous phytohormones regulate the physiology of seed metabolism [11].…”