Author(s):

R Naga Lakshmi, M Lakshminarayana Reddy, AVD Dorajee Rao, BVK Bhagavan, P Subbaramamma and K Uma Krishna

Abstract: A study was carried out for two years at Horticultural Research Station, Kovvur aimed to know the economic viability of foliar spraying plant growth regulating chemicals in tuberose. Foliar spraying with 28-homobrassinolide (28 HBL), Chlorocholine chloride (CCC) and jasmonic acid (JA) was assessed each at three different concentrations along with water spray as control. The experiment was conducted in Randomized Block Design with three replications. Application of 28-homobrassinolide at 1.0 ppm promoted leaf area and early flowering. However, plants sprayed with CCC at 1500 ppm recorded highest floret (11.84 t ha^-1) and bulb (13.77 t ha^-1) yield with highest benefit-cost ratio of 3.29. Thus, it could be recommended to foliar spray 28 HBL at 1.0 ppm for early flowering and CCC at 1500 ppm for getting maximum returns per unit area.

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