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Varietal Influence on the Nutrient Contents and Their Uptake by Wheat

F. N. Nipa
Department of Agricultural Chemistry, Bangladesh Agricultural University, Mymensingh-2202

M. N. Hassan
Department of Agricultural Extension, Ministry of Agriculture, Bangladesh

M. A. H. Chowdhury
Department of Agricultural Chemistry, Bangladesh Agricultural University, Mymensingh-2202

B. K. Saha
Department of Agricultural Chemistry, Bangladesh Agricultural University, Mymensingh-2202

Abstract/ Executive Summary:

A field experiment was carried out in the Light village of Netrokona Sadar during the period from December 2010 to March 2011 to study the performance of some wheat varieties in terms of nutrient contents and their uptake. The experiment comprised of five varieties of wheat viz. BARI Gam 25, Shatabdi, BARI Gam 26, Prodip and Bijoy. The experiment was laid out in a randomized complete block design with six replications. The nutrient contents and their uptake by wheat grain and straw were significantly influenced by the varieties. The highest N, P, K, S, Ca, B and Zn contents in grain were found in the variety BARI Gam 26 and the lowest N, K, S, Ca and Mg contents were found in the variety Shatabdi. The maximum N, P and S uptake by grain were recorded in the variety BARI Gam 26. On the other hand, the highest K and Zn uptake by grain were obtained from the variety Prodip. The minimum N, K, S, Ca, Mg and Zn uptake by grain were recorded in the variety Shatabdi. In straw, the maximum N, P, K, S, Ca and B uptake were observed in the variety BARI Gam 26 and the minimum N, K, S, Ca and B uptake were found in the variety BARI Gam 25. On the basis of nutrient contents and their uptake, wheat variety BARI Gam 26 showed the best performance.

Keywords: Wheat, Shatabdi, Nutrition

Location: Netrokona

Start Date: 00-12-2010

End Date: 00-03-2011

Program Area: Variety and Species

Commodity: Wheat

Objectives:

The present study compared the nutrient content and their uptake by most popular five BARI released wheat varieties of Bangladesh.

Methodology:

The experiment was conducted in a typical wheat growing soil at the “Light village” of Netrokona sadar during the period from December 2010 to March 2011. There were five wheat varieties considered as treatments to be tested. The varieties were BARI Gam 25, Shatabdi, BARI Gam 26, Prodip and Bijoy. The experiment was laid out in a randomized complete block design with six replications. Initial soil sample as collected and kept in a polyethylene bag for chemical analysis. The soil of the plots was silty loam textured having pH 6.49, organic carbon 0.72%, total N 0.12%, available P 12.1 µg g^-1soil, exchangeable K 0.5 c mol kg^-1available S 9.28 µg g^-1soil. There were altogether 30 unit plots in the experiment. Each replication was divided into 5 unit plots. The net size of each unit plot area was 20 m² (5 m×4 m). The spaces between blocks and between plots were 1 m and 0.5 m, respectively. Urea, TSP, MOP, gypsum, zinc sulphate, boric acid and cowdung were applied according to the Fertilizer Recommendation Guide (BARC, 2005). One third of urea and all other fertilizers were applied as basal during final land preparation prior to sowing. The remaining two thirds of urea was top dressed in two equal splits on 20 and 55 days after sowing (DAS) of the seeds. Seeds were sown on December 2, 2010. Weeding, irrigation and pesticide application were performed as and when necessary throughout the growing period. Agronomic characteristics were recorded; wheat grain and straw were collected and stored properly. N, P, K, S, Ca, Mg, B and Zn contents were determined from plant samples following standard methods that semi-micro kjeldahl method (Jackson, 1973), colorimetric method (Page et al., 1982), flame emission spectrophotometric method (Ghosh et al., 1983), turbidimetrically (Tandon, 1965), complexometric method (Page et al., 1982), Azomethine –H and atomic absorption spectrophotometric method as described by Page et al. (1982), respectively. The uptake of N, P, K, S, Ca, Mg, B and Zn were calculated by multiplying the concentration of the nutrient in the grain and straw samples with their corresponding yields. Analysis of variance was done with the help of computer package program MSTAT according to Gomez and Gomez (1984) and the mean differences among the treatments were adjudged by DMRT and LSD.

Source of Information: J. Bangladesh Agril. Univ. 11(2): 221–226, 2013, ISSN 1810-3030

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The highest values of most of nutrient contents and uptake by wheat grain and straw were obtained from the variety BARI Gam 26 which was identical with the nutrients of the variety Bijoy. In contrast, the highest K and Zn contents and their uptake were found in the variety Prodip. Depending on the nutritional values of the test varieties, they can be ranked as BARI Gam 26> Bijoy>Prodip>BARI Gam 25>Satabdi. The overall results of this study suggest that farmers can be advised to cultivate BARI Gam 26 for getting nutritious wheat in the study area.

Knowledge Management: Journal