Suraiea Akhter, H.M.M. Tariq Hossain* and A.K.M. Ruhul Amin

* The corresponding author’s Email: hmmtariq@yahoo.com


The experiment comprising three improved wheat varieties (V1 = BARI Gom-30, V2 = BARI Gom-31 and  V3 = BARI Gom-32) and four plant population densities (D0 = no thinning (control), D1 = 100 plants m−2, D2 = 125 plants m−2 and D3 = 150 plants m−2) was conducted in Split-plot design with three replications at Sher-e-Bangla Agricultural University (SAU) farm. Varieties and plant population densities were assigned in the main plots and the sub-plots respectively. From the trial, it was evident that tillering and yield-contributing characters of wheat varieties were significantly influenced by plant population densities. The above ground dry matter weight increased up to harvest while the number of tillers plant−1 increased up to 60 days after sowing and there after declined. The maximum dry matter weight (4394.0 g m−2) was found from the combination treatment V3D0. The interaction effect of V3D2 produced the maximum number of tillers plant−1 (5.35), highest weight of 1000-seeds (55.44 g), grain yield (3.20 t ha−1), biological yield (4.55 t ha−1) and thus eventually reflected maximum value of harvest index (70.67%). The highest straw yield (2.80 t ha−1) was observed from the (V1D0) treatment. As such, the combination treatment V3D2 was found to be the best treatment combination for wheat production under the agroclimatic conditions of SAU campus.

Keywords: Wheat, tiller, plant population density and yield.

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