Investigating the activity of antioxidant enzymes and the amount of protein in cut roses of Sensiro variety

An experiment was conducted to investigate the effect of sodium nitroprusside and thidiazuron on the activity of antioxidant enzymes and proteins in cut rose flowers of the Sensiro cultivar. This experiment was conducted with two factors: thidiazuron (TDZ) at three levels (0, 20, and 40 μmol/L) and sodium nitroprusside (SNP) as a nitric oxide donor at four levels (0, 20, 40, and 60 μmol/L) along with 2% sucrose as a pulse in three replications and in a completely randomized design. In this experiment, the amount of protein and the activity of antioxidant enzymes including catalase and peroxidase were evaluated in the leaves and petals of cut rose flowers of the Sensiro cultivar. The obtained data were analyzed by SPSS software. The results showed that 40 μmol/L of thidiazuron had the greatest effect on the amount of protein in the leaves of rose, rose petals and catalase activity of rose leaves. Treatment with 40 micromoles per liter of sodium nitroprusside, protein content of rose leaves and rose petals and peroxidase activity of rose leaves and treatment with 60 micromoles per liter of sodium nitroprusside catalase of rose. The highest catalase activity of rose leaves and petals and the protein content of rose leaves were obtained from the treatment of 40 μmol sodium nitroprusside with 20 μmol per liter thidiazuron.