GROWTH AND YIELD OF WHEAT AS INFLUENCED BY GA₃ CONCENTRATIONS

An experiment was conducted at experimental field of Sher-e-Bangla Agricultural University, Bangladesh to find out the growth and yield performance of wheat to gibberellic acid concentrations. Experiment consisted foliar application of three concentrations of GA3 viz. G0: No GA3 i.e., control condition; G₁: 100 ppm GA₃ and G₂: 200 ppm GA₃. Maximum plant height (89.9 cm), number of tiller/plant (5.0), CGR (5.8), RGR (0.04), dry matter content/plant (26.8 g), number of spikes/plant (4.1), number of spikelets/spike (19.0), ear length (17.0 cm), filled grains/spike (30.4), total grains/spike (32.6), weight of 1000-grains (45.5 g), grain yield (3.9 tha^-1), straw yield (4.6 tha^-1), biological yield (8.5 tha^-1) and harvest index (46.1%) were found from G₂ whereas minimum from G₀.