Different Wavelengths Promoted by Colored Growth Benches in the Production of Tamarind Seedlings

Rocha, Alana Silva; Dantas, Thaise; Bortolheiro, Fernanda Pacheco De Almeida Prado; Costa, Edilson; Silva, Abimael Gomes Da; Binotti, Flávio Ferreira Da Silva; Silva, Giovana Pinheiro Viana Da; Vieira, Gustavo Haralampidou Da Costa; Vendruscolo, Eduardo Pradi

doi:10.22059/ijhst.2025.394787.1076

Different Wavelengths Promoted by Colored Growth Benches in the Production of Tamarind Seedlings

Document Type : Research paper

Authors

Alana Silva Rocha ¹

Thaise Dantas ²

Fernanda Pacheco de Almeida Prado Bortolheiro ¹

Edilson Costa ¹

Abimael Gomes da Silva ¹

Flávio Ferreira da Silva Binotti ¹

Giovana Pinheiro Viana da Silva ¹

Gustavo Haralampidou da Costa Vieira ¹

Eduardo Pradi Vendruscolo ¹

¹ Department of Agronomy, University of State of Mato Grosso do Sul, Cassilândia, Mato Grosso do Sul, Brazil

² Department of Agronomy, Federal University of Grande Dourados, Dourados, Mato Grosso do Sul, Brazil

10.22059/ijhst.2025.394787.1076

Abstract

This study aimed to evaluate the growth and photosynthetic pigments of tamarind seedlings as a function of different wavelengths promoted by colored growing benches in various protected environments. The experiment was conducted in two protected environments: an agricultural greenhouse, covered with low density polyethylene film and aluminized thermal-reflective net (Aluminet®), which provided 50% shading under the film; and a roof, covered and closed at 45 degrees with black monofilament fabric, also providing 50% shading. In each environment, a completely randomized design was used, with five treatments and four replications: T1: control, with no material on the bench surface; T2: bench covered with glossy white laminate; T3: bench covered with glossy red laminate; T4: bench covered with glossy blue laminate and T5: bench covered with glossy yellow laminate. The different wavelengths were enhanced by the colors of the countertops, which were covered with glossy, reflective laminates (Fórmicas®). The growing bench covered with bright white reflective material had the highest reflectance. Using the bench covered with yellow reflective material increased the growth of tamarind seedlings in the growing environments. Using yellow, blue, and red reflective benches increased the concentration of photosynthetic pigments in tamarind seedlings in protected environments. It can be said that the different wavelengths promoted by colored benches bring promising results for the quality of tamarind seedlings, in which it can be observed that the laminates influenced the growth and production of photosynthetic pigments.

Keywords

Tamarindus indica L

photosynthetic pigments

light supplementation

reflected photosynthetically active radiation