LIGHT-EMITTING DIODES (LED’S) IN THE CULTIVATION OF CABBAGE MICROGREEN

• DOI: https://doi.org/10.22533/at.ed.973442425037

• Palavras-chave: Quality of light. Nutraceutical. Brasica oleraceae.

• Keywords: Quality of light. Nutraceutical. Brasica oleraceae.

• Abstract:

  Microgreens are edible plants formed from vegetable seeds, herbs or grains, with a tender and immature appearance, presenting the first pair of definitive leaves. Microgreens are harvested and consumed with a developed stem, non-senescent cotyledonous leaves and a pair of true leaves. The growth and morphology of the plant is strongly influenced by the quality of light. The objective of this work was to evaluate the effect of different types of LEDs on the production of cabbage microgreens. To conduct the work, seeds of red cabbage variety Mammouth Red Rock® were used. They were sown in plastic trays containing Carolina Soil® substrate. The microgreens were grown under the red LEDs, the blue LEDs and the green LEDs. The control treatment consisted of the absence of use of artificial light. The experimental design used was completely randomized with five replications. After 18 days of growing the microgreens, the height of the plants, the number of soluble solids (ºbrix), fresh mass and dry mass were evaluated. The data obtained were subjected to analysis of variance, with the means being statistically compared using the Tukey test at a 5% probability of error. A significant effect of the type of light was obtained for the variables ºbrix, fresh mass and dry mass of microgreens. On the other hand, for the variable height of the plants there was no significant effect of the type of light. For the conditions used in the experiment, the type of light influences the production of red cabbage microgreens variety Mammouth Red Rock®.