Response of cut rose cv. cardinal to sucrose and NaOCl concentration

Abstract

To find the response of cut rose cv. Cardinal to sucrose and NaOCl concentration, an experiment was conducted with normal day light under room condition and natural ventilation. Completely Randomized Design (CRD) was used for the experiment by replicating 3 times. Solutions of different combination of Sucrose levels of 0, 4, 8 and 12% and sodium hypochlorite with 0 (control), 5, 10 and 15 mgL -1 concentrations were applied to the cut rose cv. Cardinal. By analyzing of data collected, illustrated that cut rose cv. Cardinal significantly responded to sucrose and NaOCl levels. Combination of 15 mgl -l NaOCl with 12% sucrose was found more favorable for the whole studied parameters. Early flower opening (4 days), maximum flower fresh weight (12.30g), flower size (6.01 cm), maximum flower longevity (16 days) and dry weight (3.78) were observed for cut rose retained in solution mixture of 12% sucrose and 15 mgL -1 NaOCl. The solution containing 12% Sucrose and 15 mgL -1 NaOCl significantly increased (12.30 g) flower fresh weight. Less percent petal drop (10%) was observed by solution containing combination of 12% sucrose and 15 mgL -1 NaOCl as compared to control (33.80 %). As for sugar application individually on cut rose, early flower opening took place (4 days), maximum flower size (6.14 cm), flower fresh weight (11.57g), minimum flower wilting (15.58%), maximum flower dry weight (3.78 g), minimum petal drop (23.96 %) and longer vase life (3.39 days) were observed for 12 % sugar solution. For NaOCl application individualy, the cut rose showed early flower opening took place (4 days), maximum flower size (6.16 cm), maximum flower fresh weight (11.27g), minimum flower wilting (15%), maximum dry weight (4.13 g), minimum petal drop (18.75 %) and longer vase life (14.77) were observed for 15 mg.l -1 of NaOCl solution In general, 15 mg.l -1 NaOCl and 12 % sucrose is considered a best solution combination to be used for cut rose flowers cv. cardinal longer and quality vase life.

Impact of Various Preservative Solutions on Vase Life and Post-Harvest Quality of Cut Roses

“…This might be due to the significance of sucrose for cell growth and dry mater accumulation as it can help to the endogenous sucrose to act as substrate of respiration as illustrated by Dineshbabu et al (2002). Our results are in line with previous findings of ( Awan et al, 2017) where increment in flower size and dry weight was noted after application of sucrose solution. Total soluble solids (Brix) Total soluble solids of cut rose cultivars Kardinal and Gold medal was significantly influenced by all treatments presented in (Figure 7).…”