Growth and flowering of marigold (Tagetes patula L.) under different colors of light emitting diode (LED) light

Date

6-2022

Degree

Bachelor of Science in Agriculture

Major Course

Major in Horticulture

College

College of Agriculture and Food Science (CAFS)

Adviser/Committee Chair

Ryan Rodrigo P. Tayobong

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Abstract

In some areas such as indoor settings, light intensity is generally insufficient for plants, and flower buds often fail to open. The innovation of supplemental lighting guarantees a suitable light intensity for better plant growth for indoor crop production and management. However, there is a need to identify what kind of supplemental light source matches the light requirement of the plant species for ideal plant lighting. In this study, the response of marigold (Tagetes patula L.) to indoor condition with different colors of Light Emitting Diode (LED) light supplements were evaluated. The plants were placed in display racks with four light treatments – (1) no supplemental LED (control), (2) white LED, (3) blue LED, and (4) red LED. The plants with no LED died during the second week of the experiment because of the lack of light. Among the different light colors , the plants under red light gained taller height and a great number of buds, which is contrary to the compact and leafy plants under the blue light treatment . The white light provides the same effect as the red light in terms of flowering parameters, but with longer growing period prior to the senescence. It is recommended to conduct further study and include more plants to have better evaluation of the effects of supplemental lighting specifically to flowering ornamental plants for indoor use.

Language

English

LC Subject

Marigolds -- Effect of light on, Marigolds -- Growth, Light -- Physiological effect, Light emitting diodes -- Experiments, Agriculture, Horticulture Institute of Crop Science Horticulture 200

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

LG 993.5 2022 A3 B54

Document Type

Thesis

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