An experiment was carried out to study the “Effect of GA3 and foliar organics on yield and quality parameters of Tuberose (Polianthes tuberosa l.,) cv. Prajwal” in the department of Horticulture, Faculty of Agriculture, Annamalai University, Annamalai nagar during (2016 – 2018). The effect of twelve treatments includes GA3 at various concentrations, along foliar organics viz., fish amino acid and panchakavya at the level of 3% were studied under randomized block design (RBD) with three replications. The various treatments significantly influenced the number of spikes per plant, length of spike, length of rachis, number of florets per spike, floret length, floret diameter and flower yield . Evaluation of twelve treatments using the cumulative yield obtained over a period of one year as the criterion revealed the treatment combination of fish amino acid @ 3% with 150 ppm of GA3 produced the highest total flower yield 11.55 t ha-1. Yield and economics showed the superiority of the treatments which result in a cost benefit ratio 1:4.16.
