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The study investigated how varying root environment humidity levels (13% to 60%) affect potential difference generation in a bok choi cabbage bioelectrochemical system. Results showed that higher humidity conditions yielded the highest voltage values of 320 mV and specific power of 0.01 mW/m², though only a weak correlation was observed between humidity and voltage.

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Abstract

The dynamics of potential difference formation in bioelectrochemical systems with different root environment humidity levels from 13% to 60% was studied when growing bok choi cabbage. The highest voltage values reached 320 mV, specific power 0.01 mW/m² and were typical for samples with higher humidity. A weak correlation (r=0.3) between the root environment humidity indicators and the generated potential difference was obtained. It was suggested that, along with the properties of the root environment, the state of plants and the intensity of metabolic processes also play a significant role in voltage formation.

Key findings

  • Maximum voltage output of 320 mV and specific power of 0.01 mW/m² were achieved under higher humidity conditions.
  • A weak statistical correlation (r=0.3) exists between root environment humidity indicators and the generated potential difference.
  • Plant metabolic state and overall health are significant factors influencing voltage formation alongside root environment properties.

Keywords

HumidityPotential differenceRelative humidityRoot systemSignificant differenceIntensity (physics)

Identifiers

DOI
10.53040/cga12.59
Journal
International Congress of Geneticists and Breeders of the Republic of Moldova
Year
2025