Crescimento inicial de morangueiro indoor sob iluminação artificial

Abstract

With the expectation of population growth and increased demand for food for the coming decades, new forms of food production are more efficient and less harmful to the environment. As a result, indoor vertical farm with artificial lighting has recently developed. To develop an economic and nutritional importance of the strawberry, this work aimed to analyze the initial growth of the strawberry in an exclusive internal regime of artificial lighting provided by light emitting diodes (LED). The experiment was conducted in an indoor environment monitored daily, where strawberries of the cultivar San Andreas were grown under LED light, for plant cultivation practices, in a passive hydroponic production system on overlapping shelves. Weekly rates were calculated as absolute and relative growth rates (TCA and TCR), through the leaf area and counted or the average number of leaves per plant. The experimental design used was completely random. The data were submitted to analysis of variance. There was a significant variation in TCA, which decreased over time. A variation over time in the TCR was not significant, but it showed a tendency to increase leaf area under unit of accumulated leaf area. The average number of leaves per plant did not vary, reproduced, over time, but it was possible to verify a trend in the number of leaves followed by a reduction. The growth of the strawberry under the conditions of production of the work, analyzed with absolute and relative growth rate, was not significant, although a parametric tendency was observed at the beginning of the experiment, which indicates an increase in the gradual leaf area until the determined period time, when, from then on, average growth seems to cease. The quality of the strawberry leaf area did not follow the standard expected for sadistic strawberries.