Effect of tinting on florets drop of cut tuberose spikes

The complete research work was carried out with single experiment with factorial concept. The tuberose spikes were treated with different synthetic food dyes used are tomato red, rose pink, lemon yellow, kesar yellow, apple green and blue with two concentrations (6 and 8 %) and three different durations (4, 6 and 8 hrs). Number of florets dropping per day showed the significant difference for different food dyes from fourth to seventh day. Total number of florets were maximum dropped in P3 (12.02), which was on par with P2 (11.50) and minimum number of florets dropped in P6 (4.94). The different concentrations of food dyes treatments showed significant difference for florets dropping on 4th day. However, the maximum florets drop was found in C 2 (0.78) which was on par with P1 (0.70), whereas minimum found in control and P6 (0.00). Number of florets dropping has showed significant difference for durations of food dyes treatments on 4th and 5th day.