EFFICACY OF SEEDLING AND LEAF CLIPPING ON THE PERFORMANCE OF Binadhan-13

Abstract

A field experiment was carried out at Sher-e-Bangla Agricultural University, Dhaka, Bangladesh, during the period from 1 July to 12 December, 2019 to investigate the efficacy of seedling and leaf clipping on the performance of an aromatic rice variety Binadhan-13. The experiment comprised of two factors; Factor A: Seedling top clipping (3) viz. S 0 = Control (no clipping); S 1 = 1/3rd top clipping; S 2 =1/2nd top clipping and Factor B: Leaf clipping before panicle initiation (5) viz. L 0 = Control (no clipping), L 1 =Lower 1st and 2nd leaves clipping, L 2 =Lower 2nd and 3rd leaves clipping, L 3 =Lower 3rd and 4th leaves clipping, L 4 = Flag leaf clipping. The experiment was laid out in split plot design with three replications. Results revealed that seedling and leaf clipping either individually or combined showed significant variations in most of the characteristics of Binadhan-13. In case of seedling clipping, the effective tillers hill -1 (12.80), panicle length (25.38 cm), filled grains panicle -1 (87.75), total grains panicle -1 (106.72), 1000-grains weight (14.05 g), grain yield (3.29 t ha ), straw yield (7.55 t ha -1 ), biological yield (10.84 t ha -1 ) and harvest index (30.34 %) were observed in S 2 (1/2 nd seedling top clipping) treatment. In case of leaf clipping, the maximum effective tillers hill -1 (12.98), panicle length (25.36 cm), filled grains panicle (92.47), total grains panicle -1 (106.63), 1000-grains weight (14.43 g), grain yield (3.46 t ha ), straw yield (7.72 t ha -1 ), biological yield (11.18 t ha -1 ) and harvest index (30.89 %) were observed in L 0 -1 (no leaf clipping) treatment. In case of combined effect, the maximum effective tillers hill total grains panicle -1 (14.30), panicle length (26.35 cm), filled grains panicle -1 (113.01), 1000-grains weight (14.69 g), grain yield (3.73 t ha ), biological yield (11.43 t ha -1 ) and harvest index (32.59 %) were observed in S 2 treatment combination. Based on the findings it was concluded that treatment combination of 1/2 nd seedling top clipping (S 2 ) along with no leaf clipping (L 0 ) has positive influence on Binadhan-13 to have maximum yield attributes of grain yield.