A Biostimulant Based on Seaweed ( Ascophyllum nodosum and Laminaria digitata ) and Yeast Extracts Mitigates Water Stress Effects on Tomato ( Solanum lycopersicum L.)

Cristina Campobenedetto, Chiara Agliassa, Giuseppe Mannino, Ivano Vigliante, Valeria Contartese, Francesca Secchi and Cinzia M. Bertea
Additional contact information
Cristina Campobenedetto: Plant Physiology Unit, Department of Life Sciences and Systems Biology, University of Turin, Via G. Quarello 15/A, 10135 Torino, Italy
Chiara Agliassa: Department of Agricultural, Forest and Food Sciences, University of Turin, Largo P. Braccini 2, 10095 Grugliasco, Italy
Giuseppe Mannino: Plant Physiology Unit, Department of Life Sciences and Systems Biology, University of Turin, Via G. Quarello 15/A, 10135 Torino, Italy
Ivano Vigliante: Green Has Italia, C.so Alba 89, 12043 Canale, Italy
Valeria Contartese: Green Has Italia, C.so Alba 89, 12043 Canale, Italy
Francesca Secchi: Department of Agricultural, Forest and Food Sciences, University of Turin, Largo P. Braccini 2, 10095 Grugliasco, Italy
Cinzia M. Bertea: Plant Physiology Unit, Department of Life Sciences and Systems Biology, University of Turin, Via G. Quarello 15/A, 10135 Torino, Italy

Agriculture, 2021, vol. 11, issue 6, 1-16

Abstract: Water deficit is one of the most problematic stressors worldwide. In this context, the use of biostimulants represents an increasingly ecological practice aimed to improve crop tolerance and mitigate the negative effects on the productivity. Here, the effect derived from the foliar application of ERANTHIS ®® , a biostimulant based on seaweed ( Ascophyllum nodosum and Laminaria digitata ) and yeast extracts, was tested on tomato plants grown under mild water-stress conditions. The potential stress mitigation action was evaluated by monitoring morphometric (fresh weight and dry matter content), physiological (stem water potential) and biochemical (ROS scavenger enzymes activity, proline, abscisic acid, hydrogen peroxide and photosynthetic pigment content) parameters closely related to the occurrence and response to stress at both flowering and fruit-set timing. In general, we observed that plants grown under drought conditions and treated with the biostimulant had a lower amount of ABA, and MDA and proline correlated to a lower activity of ROS scavenger enzymes compared to untreated plants. These data, together with the higher stem water potential and photosynthetic pigment levels recorded for the treated plants, suggest that ERANTHIS ®® may mitigate water stress effects on tomato.

Keywords: drought; stress mitigation and tolerance; abscisic acid; carotenoids; antioxidant activity; biostimulation (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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