Effect of Plant Growth Regulator-Flora on the Growth and Yield of Transplanted Aman Rice

Abstract

The experiment was conducted in the farm area of Sher-e-Bangla Agricultural University, Sher-e-Bangla Nagar, Dhaka during the period of July to November, 2015 to find out the effect of plant growth regulator-flora on the growth and yield of transplanted aman rice (BR 11-Mukta). The experiment comprised of 8 treatments as- T₀: Control condition (No chemical fertilizer, no Flora), T₁: Recommended Fertilizer Doses-RFD (120, 20, 80, 16 and 2 kg ha^-1 of N, P, K, S and Zn, respectively), T₂: RFD+1 time spray of Flora, T₃: RFD+2 times spray of Flora, T₄: ½ RFD+1 time spray of Flora, T₅: ½ RFD+2 times spray of Flora, T₆: No chemical fertilizer+1 time spray of Flora and T₇: No chemical fertilizer+2 times spray of Flora. Data on different yield contributing characters, yield, and characteristics of post-harvest soil was recorded and significant variation was observed for different treatments. At harvest, the tallest plant (117.60 cm) was recorded from T₃, while the shortest plant (88.85 cm) in T₀ treatment. The highest number of filled grains panicle^-1 (86.27) was recorded in T₃, whereas the lowest number (68.53) in T₀ treatment. The highest grain yield (5.13 t ha^-1) was recorded in T₃, while the lowest (2.78 t ha^-1) in T₀ treatment. The highest total nitrogen (0.632%) was recorded from T₃, while the lowest (0.369%) in T₀ treatment.