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Article

Assessing the Biostimulant Effects of a Novel Plant-Based Formulation on Tomato Crop

Department of Agricultural Sciences, Biotechnology and Food Science, Cyprus University of Technology, Limassol 3036, Cyprus
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Sustainability 2020, 12(20), 8432; https://doi.org/10.3390/su12208432
Received: 18 September 2020 / Revised: 5 October 2020 / Accepted: 7 October 2020 / Published: 13 October 2020
The aim of this research was to evaluate the biostimulant effects of an eco-product (EP) containing essential oils of rosemary and eucalyptus on tomato crop. Experiments were conducted to evaluate EP effects on plant growth and physiological parameters (e.g., chlorophyll content), total phenols and antioxidant activity, enzyme activities (e.g., catalase), plant macronutrient content and fresh tomato fruit quality. The application of an EP once (EP-1x) increased tomato plant height by 19%, stomatal conductance, and chlorophyll content compared to the control (sprayed with water). EP triplicate (EP-3x) application significantly increased yield (0.79 kg plant−1) compared to the control (0.58 kg plant−1). However, application of EP-3x was associated with a higher percentage of fruit cracking in comparison to the control. Total phenols and antioxidant activity were affected from both the use of EP and application frequency. EP application decreased by 27.3% the leaf damage index in comparison to the control. Nutrient content in leaves (N, Mg) was significantly decreased in the case of EP-3x treatment. Fruit firmness was decreased by 19.9% in the case of EP-1x application. Fruit marketability and tomato-like aroma, fresh weight and soluble solids did not differ among the treatments. Further research is required to examine the potential use of essential oils as biostimulants. View Full-Text
Keywords: essential oils; rosemary; eucalyptus; biostimulants; vegetable production; fruit quality essential oils; rosemary; eucalyptus; biostimulants; vegetable production; fruit quality
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MDPI and ACS Style

Chrysargyris, A.; Charalambous, S.; Xylia, P.; Litskas, V.; Stavrinides, M.; Tzortzakis, N. Assessing the Biostimulant Effects of a Novel Plant-Based Formulation on Tomato Crop. Sustainability 2020, 12, 8432. https://doi.org/10.3390/su12208432

AMA Style

Chrysargyris A, Charalambous S, Xylia P, Litskas V, Stavrinides M, Tzortzakis N. Assessing the Biostimulant Effects of a Novel Plant-Based Formulation on Tomato Crop. Sustainability. 2020; 12(20):8432. https://doi.org/10.3390/su12208432

Chicago/Turabian Style

Chrysargyris, Antonios, Savvas Charalambous, Panayiota Xylia, Vassilis Litskas, Menelaos Stavrinides, and Nikos Tzortzakis. 2020. "Assessing the Biostimulant Effects of a Novel Plant-Based Formulation on Tomato Crop" Sustainability 12, no. 20: 8432. https://doi.org/10.3390/su12208432

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