Effect of Different Preservatives on Vase-Life of Cut Tuberose (Polianthes tuberosa L.) cv. Calcultta Single

Abstract

Tuberose (Polianthes tuberosa L.) is a perennial, bulbous flowering plant, belongs to family Amaryllidaceae. The study was conducted at postharvest research laboratory, Department of CIHAB, Palli Siksha Bhavana, Visva-Bharti, Sriniketan, Bolpur during the period of May 2014 to June 2014. Treatment details of experiment consists of T1= Control, T2= Sucrose 2.5%, T3= Sucrose 5%, T4= Citric acid 2.5%, T5= Citric acid 5%, T6= AgNO3 15ppm, T7= AgNO3 30ppm, T8= Sucrose 2.5% + Citric acid 2.5%, T9= Sucrose 2.5% + Citric acid 5%, T10= Sucrose 2.5% + AgNO3 15ppm and T11= Sucrose 5% + AgNO3 25ppm. Flowering spikes were kept in 200ml solution of 250ml conical flask and recorded different post-harvest observations. Conical flask mouths were covered with a sheet of polyethylene film. The experiment was laid out in Completely Randomized Design (CRD) with three replications. Experimental results relieved that different vase preservatives solutions were significantly affected the vase-life of tuberose flowers. The combination and concentration of Sucrose 2.5% and AgNO3 15ppm were found to most suitable preservative solution for extending the vase life of tuberose cut flowers.