Exploring the effect of Nitric Oxide and Thidiazuron on vase life of cut Tuberose (polianthes tuberosa L.) flowers

This experiment was carried out to study the effects of time and chemical treatments on increasing the vase life of cut Tuberose (polianthes tuberosa L.) flowers. The investigation was conducted in two time-spans (24 and 48 hours). After the harvest, cut Tuberose flowers were pulsed with Nitric oxide and Thidiazuron in four concentrations and were then transferred to the containers of preservative solution including distilled water (used as control). The effects of the applied treatments on plant life and some of the quantitative and qualitative characteristics such as open florets percentage, relative fresh weight, solution absorbance rate, etc. were evaluated. The results indicated that there was no significant difference between time treatments with respect to the measured characteristics. TDZ treatments (25 and 50 µM) increased vase life and open florets. In addition, 25µM TDZ treatment kept the relative wet weight and 25 and 50µM TDZ treatments increased solution absorbance. However, the application of NO treatment did not increase the vase life of the plant.