Foliar application of plant growth regulators on growth, yield and quality of hybrid rice

The field experiment was conducted on hybrid rice crop during growing season’s 2015 and 2016 with foliar application treatment concentration viz;T1: Control, T2: GA3 20, T3:GA3 40 ppm, T4: IAA 25,T5: IAA 50 ppm, T6: NAA 10, T7: NAA 20 ppm, T8: Triacontanol 5, T9:Triacontanol 10 ppm, T10: Cycocel 3000 and T11: Cycocel 4000 ppm with two foliar sprays (first spray at tillering and second at flowering stages for growth, yield and quality. The observation was recorded at different stages of crop. Higher doses of Cycocel reduced the plant height and Gibberellic acid GA3 50 ppm significantly increased the plant height, IAA 50 ppm increased carbohydrate content (mg g-1 dry wt.), at all crop growth stages, chlorophyll fluorescence, protein content in straw, panicle dry weight plant-1 (g), grain yield (kg/ha-1) were recorded in comparison to control (T1).