Interaction of sodium-nitroprusside and nano-potassium spraying on physicochemical ‎properties and antioxidant capacity of Strawberry fruit (Fragaria × ananassa Duch. ‎cv. Camarosa)‎

Document Type : Full Paper


1 M. Sc. Student, Faculty of Agriculture, Urmia University, Urmia, Iran

2 Assistant Professor, Faculty of Agriculture, Urmia University, Urmia, Iran

3 Ph. D. Candidate, Faculty of Agriculture, Tarbiat Modares University (TUM), Tehran, Iran


The use of treatments such as nanofertilizers and hormones in soilless culture are important factors influencing the quantity and quality of horticultural products. In order to investigate the interaction of nanopotassium (0, 1, 2 and 3 g/l) and sodium nitroprusside (0, 200, 400 and 600 μ mol/l) on strawberry fruit (cv. Camarosa) under hydroponic culture system, a factorially experiment based on completely randomized design was carried out. The results showed that all morphological characteristics including fruit number, fruit length and diameter and fruit weight were statistically significantly different from control samples. The highest number, length and weight of fruit were observed in the treatment of 400 μmol/l sodium nitroprusside and 1 g/l of nanopotassium. The results showed that all phytochemical properties and antioxidant and enzymatic activities were statistically significantly different from control at 1% level of probability. The highest amount of total phenol was observed in the combined treatment (2 g/l nanopotassium and 400 μmol/l sodium nitroprusside) and the highest PAL enzyme activity was related to the combined treatment (3 g/l nanopotassium and 600 μmol/l sodium nitroprusside). In general, the results of the present study showed that the treatment of nanopotassium and sodium nitroprusside can increase the quantity and quality of strawberry fruit and increase its marketability significantly.


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