Impact of LED lightings on Misai Kucing herbs growth based on different height exposure
List of Authors
  • M E Ya’acob , N Roslan

Keyword
  • Malaysia Herbs, LED Lights, RCBD, Plant Height, Low Lights.

Abstract
  • Orthosiphon stamineus Benth. from family Lamiaceae, is locally known as Misai Kucing is a very popular herb among Malaysian because of its health benefits such as treatment for gallstones, hepatitis, rheumatism, hypertension and etc. To meet the increasing demand for raw materials of this herb, controlled environment agriculture is an alternative and a supplement for herb production. There are various constraints in the commercial cultivation of this herb especially low light. Light is one of the most prominent factors influencing herbs quality, growth and development. Thus, LEDs (light-emitting diodes) technologies have opened up new perspectives for new sustainable solutions and highly efficient light source for greenhouse lighting. However, the most challenging for growers when growing plants under LED artificial light source were designing an array of lights adequate for the lighting needs for each plot and proper placing of the lights above the plants. Four different level of height (15H, 20H, 25H and 30H) of LED light were exposed to Misai Kucing in a Randomized Complete Block Design (RCBD) trial with the aim to determine the effect on plant growth (number of leaves, number of branches, plant height & stem diameter) and relative chlorophyll content in Misai Kucing due to the different light intensity levels.

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