Abstract:
The experiment was conducted to find the effect of different cultivars and time of nitrogen application on the growth and yield of separated tillers of transplant aman rice. Tillers of three rice cultivars (BRRI Dhan 32, BR 23 and BR 22) and five timings of nitrogen application were used as treatments. The individual effect of var. BR 23 and the three equal splits of application of nitrogen as basal, at early tillering and at panicle initiation stages gave the best results on plant height, no. of tillers hill-1, no. of leaves hill-1 , leaf area index, no. of grains panicle-1 , weight of 1000 grains, grain yield, straw yield, biological yield and harvest index having 121.21 and 122.54 cm, 9.10 and 9.26, 36.72 and 39.91, 4.92 and 4.68, 118.60 and 118.50, 23.98 and 22.33 g, 4.55 and 4.79 t ha-1, 6.15 and 6.60 t ha-1 , 10.70 and 11.40 t ha-1, 42.62 and 41.24 %, respectively. The interaction effect of var. BR 23 and T2was the highest on these parameters. Rice var. BR 23 and three splits of nitrogen application may be used for increasing growth and yield of separated tillers of transplanted aman rice.
M.R. Alam , M.A.R. Sarkar , K.M. Khalequzzaman , Md. Nazrul Islam , M.K. Anam and Md. Abdur Rahim , 2002. Effect of Timing of Nitrogen Application on the Growth and Yield of Separated Tillers of Transplant Aman Rice. Pakistan Journal of Biological Sciences, 5: 900-902.
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