Study of flowering behaviour and vase life by the action of various plant growth regulators in Rosa hybrida L. cv gladiator

Abstract

A field experiment on the influence of plant growth regulators on flowering behavior and vase life of rose (Rosa hybrid L,) cv, Gladiator was conducted at Floriculture Research Scheme, Regional Horticulture Research Station, ASPEE College of Horticulture and Forestry, Gujarat Agricultural University, Navsari during 2002-2003. Four different concentrations of GA3 (100, 150, 200 and 250 mg/l), BA (50, 100, 150 and 200 mg/l) and ethrel (200, 300, 400 and 500 mg/l) was compated with control. Thirteen treatments along with control were laid out in a Randomized Block Design (RBD) with and three replications. The highest weight of single flower (26.3 g) was obtained with GA3 250 mg/l. The maximum number and weight of petals per flower were recorded in GA3 250 mg/l. Number of flowers per plant was obtained highest with GA3 250 mg/l which was at par with GA3 200 mg/l and number of flowers per hectare was increased with an application GA3 250 mg/l. Highest shelf life and vase life of cut rose flower was obtained with GA3 250 mg/l.