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Effect of Management and Seed Rate on the Performance of Wheat Varieties with Varying Seed Sizes

M.A.Z. SARKER
Wheat Research Centre, BARI, Nashipur, Dinajpur-5200,

P.K. MALAKER
Wheat Research Centre, BARI, Nashipur, Dinajpur-5200,

M. BODRUZZAMAN
Wheat Research Centre, BARI, Nashipur, Dinajpur-5200,h

N.C.D. BARMA
Wheat Research Centre, BARI, Nashipur, Dinajpur-5200,

Abstract/ Executive Summary:

An experiment was conducted with three wheat varieties of varying seed sizes at five seed rates in medium and high management at Wheat Research Centre, Dinajpur during 2004-05 Rabi season to determine the appropriate seed rates for the varieties under different management practices. On an average, high management increased grain yield by 18.4%, but the benefit-cost ratio (BCR) was higher in medium management. Higher grain yield was obtained from varieties Shatabdi (medium sized seed) and Prodip (large sized seed) compared to Sufi (small sized seed) in high management, whereas in medium management, all the varieties produced similar grain yield. Considering yield performance and BCR analysis, the seed rates of Sufi and Shatabdi might be I 00 and 120 kg/ha, respectively, for both the managements. Seed rates of Prodip might be 120 and 140 kg/ha for medium and high management, respectively.

Keywords: Seed rate, Seed size, Variety, Wheat

Location: At the Research Farm of WRC, BARI, Dinajpur

Start Date: 00-00-2004

End Date: 00-00-2005

Program Area: Seed Technology

Commodity: Wheat

Objectives:

To higher plant density, shorter spike length and lower number of grains per spike.

Methodology:

The experiment was conducted at the Research Farm of WRC, BARI, Dinajpur (88°41' E and 25°38' N) during Rabi season of 2004-05. The soil was under the AEZ 1 (Old Himalayan Piedmont). The soil was sandy loam with pH 1). Soil organic matter and total N were lower than the critical level. Although available P, exchangeable K and available S were higher than the critical level, the amount was very low for wheat.

Source of Information: Bangladesh J. Agril. Res. 34(3) : 481-492, September 2009

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Plant characters, yield and yield attributes as affected by management, variety and seed rate: Management effect was significant on tiller number per unit area, 1000-grain weight, and grain yield . significantly higher number of tillers resulted in remarkably higher number of spikes per unit area in high management. significantly higher (18.4%) grain yield was obtained from high management with higher 1000-grain weight. Plant population was dependent on the seed size i.e., number of plants per unit area was higher in a variety, which had smaller seed, and obviously it increased with the increase in seed rate . Number of tillers per unit area was found higher in Shatabdi and lower in Prodip, and it also increased with the increase in seed rate upto 140 kg/ha. The increasing rate of tillers per unit area was less compared to increasing rate of plant population. Number of spikes per unit area was found higher in Sufi and lower in Prodip, and it also increased with the increase in seed rate upto 140 kg/ha and the increasing rate of spikes per unit area was less compared to increasing rate of plant population.

Knowledge Management: Journal