Abstract
The type of artificial light used for inducing photoperiod effect in begonia's seedlings at greenhouse has fundamental importance in the growth and development of these plants and directly reflects in the electrical energy consumption used in this production process. The objective of this research was to analyze the technical and economic feasibility of replacing the current technology of artificial lighting used by the producers (incandescent lamps), by the technology of discharge lamps with the purpose of inducing photoperiod in a greenhouse. The analysis results indicate that the discharge lamp of 32 W Tubular Fluorescent discharge lamp was the one that presented the lower peak demand and lower average energy consumption of 85.01% compared to incandescent filament lamp of 100 W that is the technology of bigger consumption and currently used by the producer.
Highlights
The begonias were known since the 17th Century by the Chinese
The cultivated begonias are derived from crossings initiated in the 19th Century, arising cultivars with many characteristics, like continuous flourishing, higher resistance to high and low temperatures and innumerous formats and flower colors (PROPAGAÇÃO DA BEGÔNIA, 2008)
There is the search of ways to save energy by the use of conservation practices, such as the rational use of electric energy and the utilization of new Technologies of artificial illumination that may contribute so that the producers of ornamental plants change to viable economical alternatives
Summary
There are over 800 catalogued species and thousands of hybrids The acceptance of these tropical flowers in the domestic and foreign markets is due, mainly to its beauty, forms and differentiated colors and high durability of the floral bud (AGRONEGÓCIOS, 2007). There is the search of ways to save energy by the use of conservation practices, such as the rational use of electric energy and the utilization of new Technologies of artificial illumination that may contribute so that the producers of ornamental plants change to viable economical alternatives. The use of illumination Technologies of the discharge type, differently from the incandescent type, reduced the energy consumption and did not cause floral induction, contributing for the rationalization of the use of electric energy on the production
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