CULTIVATION OF THREE LETTUCE VARIETIES UNDER LOW LIGHT INTENSITY CONTROLLED ENVIRONMENT IN TROPICAL URBAN AREA

Authors

DOI:

https://doi.org/10.32404/wdq7xx82

Keywords:

Artificial light, Light emitting diode, Light stress, Shade intensity

Abstract

Lettuce (Lactuca sativa) is a leafy vegetable that is widely consumed due to its high nutritional content. The growth and yield of lettuce plants are significantly influenced by light intensity. Despite its potential, information about the intensity required for plants to grow optimally, specifically in urban areas, is still limited. Therefore, this study aims to evaluate the morphological and physiological growth and yield of 3 lettuce varieties under the intensity of sunlight and artificial light. The procedures were carried out using a split-plot design with 3 replications. The main plot comprised 55% shade (S55% + SL), 80% shade (S80% + SL), and 100% shade combined with artificial light from Light Emitting Diode (LED) lights (S100%+LED), which served as low-intensity light. Meanwhile, the subplots were 3 varieties of lettuce, including Romaine Lactuca sativa L. VAR. Longifolia (V1), Grand rapids Lactuca sativa L. VAR. new grand rapids (V2), and siomak Lactuca sativa L. VAR. Augustuna (V3). The results showed that shading intensity of 80% (S80% +SL) and 100% (SD100%+LED) inhibited plant growth, particularly in leaves and roots. Microclimate conditions, such as air temperature and light intensity, were lower due to the influence of shade. In conclusion, 3 lettuce varieties cannot grow optimally under low intensity shade, and 100% shade (SD100%+LED) is not suitable for the specific needs of plant to promote optimal growth and yield of lettuce.

Author Biographies

  • Fitri Ramadhani, University of Sriwijaya

    University of Sriwijaya, Jl. Raya Palembang-Prabumulih, Indonesia. 

  • Benyamin Lakitan, University of Sriwijaya

    University of Sriwijaya, Jl. Raya Palembang-Prabumulih, Indonesia. 

  • Rujito Agus Suwignyo, University of Sriwijaya

    University of Sriwijaya, Jl. Raya Palembang-Prabumulih, Indonesia. 

  • Susilawati, University of Sriwijaya

    University of Sriwijaya, Jl. Raya Palembang-Prabumulih, Indonesia. 

  • Umar Harun, University of Sriwijaya

    University of Sriwijaya, Jl. Raya Palembang-Prabumulih, Indonesia.

  • Yakup, University of Sriwijaya

    University of Sriwijaya, Jl. Raya Palembang-Prabumulih, Indonesia.

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Published

2026-04-27

How to Cite

CULTIVATION OF THREE LETTUCE VARIETIES UNDER LOW LIGHT INTENSITY CONTROLLED ENVIRONMENT IN TROPICAL URBAN AREA. (2026). REVISTA DE AGRICULTURA NEOTROPICAL, 13(1). https://doi.org/10.32404/wdq7xx82