Responses of In Vitro Strawberry Plants to Drought Stress under the Influence of Nano-Silicon Dioxide

Sevinç Şener (), Hülya Sayğı and Canan Nilay Duran
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Sevinç Şener: Department of Horticulture, Faculty of Agriculture, Akdeniz University, Antalya 07058, Turkey
Hülya Sayğı: Department of Organic Agriculture, Vocational School of Yumurtalık, Çukurova University, Adana 01170, Turkey
Canan Nilay Duran: Division of Horticulture, Institute of Natural and Applied Sciences, Akdeniz University, Antalya 07058, Turkey

Sustainability, 2023, vol. 15, issue 21, 1-15

Abstract: The aim of the study is to determine the effectiveness of nano-silicon dioxide (NaSiO 2 ) application on the tolerance of strawberry plants exposed to drought stress under in vitro conditions. Drought stress was induced with polyethylene glycol (PEG-6000). In the experiment, the effects of PEG 6000 concentrations (0, 4, 8%) and NaSiO 2 concentrations (0, 50, 100 mg L −1 ) on in vitro strawberry plants were determined. Plants treated with PEG 6000 showed reduced vegetative growth parameters, but this decrease was reduced with NaSiO 2 application. The addition of NaSiO 2 enhanced shoot and leaf growth, SPAD index, and the leaf relative water content (LRWC) of in vitro strawberry plants. NaSiO 2 at 50 mg L −1 induced the maximum shoot and root fresh weight (1.20 g, 1.24 g, respectively) and length (40.09 mm, 34.26 mm, respectively), leaves number (16.67 pieces/plant) and SPAD index 53.57 among 4% and 8% PEG applications. When the superoxide dismutase (SOD) and catalase (CAT) activities were examined, the results showed that the application of NaSiO 2 enhanced drought stress tolerance by promoting certain antioxidant responses by increasing SOD and CAT activities under drought stress. Our results suggest that the application of NaSiO 2 can help maintain the devastating impact of drought stress and markedly enhance all the examined parameters in the Albion strawberry cultivar under in vitro conditions.

Keywords: abiotic stress; nanoparticles; drought; strawberry; silicon dioxide; tissue culture (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2023
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