Internet of Things monitoring of rocket growth supplemented by LEDs lighting

In this study, the Internet of Things (IoT) was employed for monitoring the growth parameters of rocket (Eruca sativa) plants cultivated in a greenhouse under supplemental LEDs lighting. Red (R), blue (B) and the combination red and blue in different ratios (75R:25B, 50R:50B, 25R:75B), were employed, as well as white LEDs. The LED lamps were automatically turned on at 18:00 and off at 24:00.

Thus, the plants were grown in an 18 h photoperiod until the harvest time under daylight supplementary lighting (i.e. 12 h sunlight and 6 h LED). Yield, biomass, leaf area (LA), leaf area index (LAI), leaf area rate (LAR), leaf weight rate (LWR), specific leaf area (SLA), relative growth rate (RGR), crop growth rate (CGR) and net assimilation rate (NAR) of rocket plants were investigated, through sensors of temperature, humidity, and light intensity via a Raspberry Pi board by the Message Queuing Telemetry Transport (MQTT) communication protocol.

ANOVA results demonstrated that 50R:50B LEDs lighting produce higher yield, total biomass, LA, CGR, LAI, LWR, as well as lower SLA as compared to other treatments. Reliability analysis showed that IoT monitoring system is stable and reliable for controlling of environmental conditions (i.e., temperature, humidity) of the greenhouse.

Read the complete research at

Jamal, Jolan & Azizi, Sadoon & Abdollahpouri, Alireza & Ghaderi, Nasser & Sarabi, Behrooz & CastaƱo-Meneses, Victor & Silva-Ordaz, Arturo. (2021). Internet of Things monitoring of rocket (Eruca sativa) growth supplemented by LEDs lighting. Sensing and Bio-Sensing Research. 34. 100450. 10.1016/j.sbsr.2021.100450. 

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