Resumo

MENDOZA-PAREDES, J.E. et al. Coriander (Coriandrum sativum L.) response to blue and red LED light. Biotecnia [online]. 2021, vol.23, n.2, pp.149-160.  Epub 05-Set-2022. ISSN 1665-1456.  https://doi.org/10.18633/biotecnia.v23i2.1340.

Coriander is a widely accepted species due to its culinary uses and medicinal properties. This crop could be developed in a controlled environment with LED lighting and would allow continuous production, with an exponential increase in yield, and free of pests and diseases. There is little research about the response of coriander under such conditions. The objectives of this study were to evaluate the effects of five ratios of blue:red LED light on growth parameters, photosynthetic pigments and nutriments concentration in the aerial part of coriander ‘Gladiador’ under controlled growth conditions. The results were adjusted to a third-degree polynomial regression. A A37.7 %: R62.3 % blue (A) and red (R) light ratio promoted growth parameters and photosynthetic pigments concentration, while a A57.7 %: R42.3 % ratio promoted nutrient concentration in the aerial coriander part. This allows us to deduce that for a possible commercial production of coriander, under controlled environment conditions, the best blue and red light ratio is A37.7%: R62.3 %, since growth and therefore commercial yield are promoted.

Palavras-chave : controlled environment; hydroponic; photosynthetic pigments; macronutrient; micronutrient.

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