Evaluation of the Nutrients Uptake by Tomato Plants in Different Phenological Stages Using an Electrical Conductivity Technique

Nutrient consumption by plants depends on the growth stage and environmental conditions. In general, plants take up species of elements at different speeds. We monitored and recorded the electrical charge flow through xylem sap of tomato plants (Brillante F1) using femto/picoammeter equipment (Keysi...

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Bibliographic Details
Published in:Agriculture (Basel) 2021-04, Vol.11 (4), p.292
Main Authors: Bodale, Ilie, Mihalache, Gabriela, Achiţei, Vladut, Teliban, Gabriel-Ciprian, Cazacu, Ana, Stoleru, Vasile
Format: Article
Language:English
Subjects:
chemical fertilization
Circadian rhythm
Conductivity
Developmental stages
Electric currents
electrical charge flow
Electrical conductivity
Electrical resistivity
Environmental conditions
Experiments
Flowers
Flowers & plants
Growth stage
Nitrates
Nutrient deficiency
Nutrient uptake
Nutrients
Phosphorus
Physiology
plant electrical conductivity
plant electrical signal
Plant growth
Plants (botany)
Potassium
Potassium chloride
Potassium phosphate
Potassium phosphates
Ripening
Signal transduction
tomato plants
Tomatoes
Xylem
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Summary:Nutrient consumption by plants depends on the growth stage and environmental conditions. In general, plants take up species of elements at different speeds. We monitored and recorded the electrical charge flow through xylem sap of tomato plants (Brillante F1) using femto/picoammeter equipment (Keysight B2981A). This technique evaluates the nutrient uptake of tomato treated with the most common macronutrients (KNO3; KH2PO4; Ca(NO3)2; KCl) by monitoring the electrical conductivity for 24 h. The electrical conductivity of each treatment correlated with the plant growth and development stages. The results showed that the tomato plants had a high consumption of nutrients in the vegetative stage, while in other stages, they had a specific consumption, like phosphorus for bulb formation, potassium for increasing the number of flowers and water for the ripening of fruits. The quantitative evaluation of the ions absorbed by the plant was based on the magnitude and shape of the electrical conductivity curves. Our technique is an efficient method to determine nutrient consumption and is useful in predicting the deficiency of a certain element in tomato plants.
ISSN:2077-0472
2077-0472
DOI:10.3390/agriculture11040292