EFFECT OF GROWTH REGULATOR ON GROWTH AND YIELD OF BUTTON ROSE

A Field study entitled ‘Effect of Growth Regulator on Growth and Yield of Button Rose’ was carried out in a farmer's field near Hosur, Krishnagiri district during 2020-21. The experiment conducted in a randomized block design with three replication. i.e., GA3, NAA, and Tricontanal, along with amino acid and salicylic acid, were also applied with various different combinations, sprayed 30 and 45 days after pruning.The results revealed that Foliar application of (T7) 150 ppm GA3+ salicylic acid consistently registered the highest consistently registered the maximum plant height (110.36), plant spread (43.80 ), number of laterals plant-1 (46.80), number of leaves per plant (181.30), leaf area (42.60) and Chlorophyll (1.65)such as the number of flowers plant-1 day (1.61), days taken for first flowering (45.76) flower diameter (5.83), single flower weight (3.62), flower yield plant-1 day (5.83) was also recorded as the highest in the above treatment. It was followed by (T8), which recorded nest best on-bar values in these parameters. By considering the yield parameters it can be concluded that T7 - GA3 @ 150ppm + Salicylic Acid @ 100ppm was found to have the best effect on growth, flowering and yield parameters of button rose cultivated in open field condition.