An experiment was carried out to study the “Effect of growth regulator and foliar organics on growth and yield 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 including growth regulators GA3 at various concentrations, foliar organics viz., fish amino acid and panchakavya at the level of 3% were studied under randomized block design (RBD) with three replications. The effect of treatment combination were studied based on their influence on plant height, number of leaves, number of side shoots, days taken for first spike emergence and flower yield. Evaluation of twelve treatments revealed that the performance of plants treated with (T10) GA3 @ 150 ppm with fish amino acid @ 3% resulted in favorable plant height (62.84), number of leaves(49.72), number of side shoots per plant(10.73) , days taken for flower spike emergence(82.44) and flower yield (15.16 t).
