Título:	An open-architecture precision vertical farming system for sesame microgreens: audit-ready telemetry for dynamic lighting and energy–biomass benchmarking.
Autoria:	SILVA, M. D. VASCONCELOS, J. M. SILVA, F. B. da BAILÃO, A. S. de O. GUEDES, I. M. R. VILELA, M. da S. COSTA, A. C. ROSA, M. LOURENÇO, L. L. SILVA, F. G.
Afiliação:	MARLUS DIAS SILVA, INSTITUTO FEDERAL GOIANO; JAQUELINE MARTINS VASCONCELOS, INSTITUTO FEDERAL GOIANO; FÁBIA BARBOSA DA SILVA, INSTITUTO FEDERAL GOIANO; ADRIANO SOARES DE OLIVEIRA BAILÃO, INSTITUTO FEDERAL GOIANO; ITALO MORAES ROCHA GUEDES, CNPH; MÁRCIO DA SILVA VILELA, INSTITUTO FEDERAL GOIANO; ADRIANO CARVALHO COSTA, INSTITUTO FEDERAL GOIANO; MÁRCIO ROSA, UNIVERSIDADE DE RIO VERDE; LUCAS LORAM LOURENÇO, INSTITUTO FEDERAL GOIANO; FABIANO GUIMARÃES SILVA, INSTITUTO FEDERAL GOIANO.
Ano de publicação:	2026
Referência:	Smart Agricultural Technology, v. 14, 102105, Aug. 2026.
Conteúdo:	The reproducibility of lighting protocols in Plant Factories with Artificial Lighting (PFALs) is frequently constrained by the scarcity of auditable operational data. This study presents and validates an open-architecture Precision Vertical Farming System (PVFS) capable of executing dynamic photosynthetic photon flux density (PPFD) profiles under controlled Daily Light Integral (DLI), ensuring traceability via IoT telemetry. The system was applied to sesame microgreens grown using a 2×4 factorial design, combining temporal profiles (Constant vs. Gaussian) and light spectra (White, Blue, Red, and RBW), with DLI equalized at 10.8molm−2 d−1. Telemetric validation demonstrated high stability (jitter ≈ 0) and data completeness (> 98%), enabling the precise calculation of Specific Energy Consumption (SEC) and Energy-to-Mass Efficiency (EEMS). Results indicated that, under equivalent DLI, the Gaussian profile increased energy costs (higher SEC) without proportional biomass gains for most spectra. The Red–Constant treatment achieved the highest efficiency (10.02gkWh−1), whereas white light exhibited the highest energy cost. Principal Component Analysis (PCA) reinforced that energy performance (SEC/EEMS) was more strongly associated with production outcomes (biomass) than with instantaneous photosynthetic metrics (e.g., ����∕����), underscoring the importance of continuous monitoring of energy use and yield. The PVFS proved to be a robust tool for energy benchmarking and the standardization of lighting recipes in vertical farming.
Thesagro:	Iluminação Artificial Gergelim
Palavras-chave:	Agricultura vertical de precisão
Tipo do material:	Artigo de periódico
Acesso:	openAccess
Aparece nas coleções:	Artigo em periódico indexado (CNPH)