Effect of Boron and Gibberellic Acid on Growth, Yield and Quality of Tuberose (Polianthes tuberosa L.) cv. Arka Nirantara

An experiment was conducted in Horticulture Research Field, Department of Horticulture, Naini Agricultural Institute, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj during April, 2023 to March, 2024 with an aim to identify the most suitable treatment combination with boron and gibberellic acid under agroclimatic conditions of Prayagraj. The experiment was conducted in Randomized Block Design with nine treatments replicated thrice. Treatments consisted of two levels of boron (10 ppm and 15 ppm) and GA3 (100 ppm and 150 ppm) each and their different concentration with water spray as control. Treatment combination (Boron @ 15 ppm + GA3 @ 150 ppm) performed better in parameters like plant height (21.8 cm), plant spread (44 cm), rachis length (38.5 cm), spike length (88.4 cm), number of florets/plant (50.5), diameter of florets (16.3 mm), florets weight (13.2 g), shelf life of florets (6 days), number of spike/ plant (2. 8) whereas days required for first flower spike (70 days) was lesser in sole treatment (GA3 @ 100 ppm).