Non-Invasive Monitoring of the Thermal and Morphometric Characteristics of Lettuce Grown in an Aeroponic System through Multispectral Image System

Aeroponics is a soilless cultivation technology integrating plant nutrition, physiology, ecological environment, agricultural automation and horticulture. One of the advantages that non-invasive observation root system growth development possible. This paper presents vegetative evaluation lettuce plants in an aeroponic chamber, where leaf parameters were measured three crops through images captured visible (VIS), near infrared (NIR) far (IR) spectra. A total ninety was transplanted for this research, thirty each experimental crop. The grown days chamber inside greenhouse under favorable conditions. morphometric thermal roots (perimeter, area, length average temperature) leaves area evaluated crop along ten image-capturing sessions implemented multispectral vision system. values obtained with imaging growing period statistically analyzed Tukey testing. analysis results show no significant difference value p ≤ 0.05 86.67%. Hence, can be used to characterize crops. On other hand, correlation conducted between computed image processing ambient temperature. were: R = 0.945 temperature, 0.963 temperature 0.977 According these results, highly correlated study suggest useful tool estimate greenhouse.