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Growth and Yield of Potato as Affected by Arsenic Levels

M. A. Hussain
Department of Agronomy, Sher-e-Bangla Agricultural University, Dhaka-1207

T. S. Roy
Department of Agronomy, Sher-e-Bangla Agricultural University, Dhaka-1207, Bangladesh

Z. Islam
Department of Agronomy, Faculty of Agriculture, Sher-e-Bangla Agricultural University, Sher-e-Bangla Nagar, Dhaka-1207, Bangladesh

M. M. Rahman
Department of Agronomy, Sher-e-Bangla Agricultural University, Dhaka-1207

S. A. Shapla
Dept. of Horticulture, Sher-e-Bangla Agricultural University, Dhaka

Abstract/ Executive Summary:

A pot experiment was conducted at the Agronomy research field, Sher-e-Bangla Agricultural University, Dhaka, Bangladesh from November 2011 to February 2012, to find out the effect of 5 different Arsenic (As) levels viz., As₀ (Control), As₁ (10 mg As kg^-1 soil), As₂ (20 mg As kg^-1 soil), As₃ (30 mg As kg^-1 soil) and As₄ (40 mg As kg^-1 soil) on growth and yield of four potato varieties viz., V₁ (Cardinal), V₂ (Diamant), V₃ (Asterix) and V₄ (Granola). The application of As had significant effect on growth and yield contributing parameters of potato irrespective of variety. Among the 5 As levels, 10 mg As kg^-1 soil exhibited the positive performance for all growth and yield contributing characters except tuber number. Growth and yield contributing parameters increased up to application of 10 mg As kg^-1 soil and thereafter decreased with increasing As levels. Among 4 varieties, Diamant showed the best As tolerance and maximum growth whereas least in Granola. Out of 20 treatment combinations, Diamant cultivated with 10 mg As kg^-1 soil performed the best results in terms of growth and yield. The maximum tuber yield plant^-1 (438.00 g) was obtained by Diamant with the application of 10 mg As kg^-1 soil whereas the lowest from Granola variety with 40 mg As kg^-1soil. On the basis of yield and As tolerance the variety Diamant was superior than those of other varieties.

Keywords: Potato, Arsenic, Growth,Yield.

Location: Agronomy research field, Sher-e-Bangla Agricultural University, Dhaka

Start Date: 00-11-2011

End Date: 00-02-2012

Program Area: Crop-Soil-Water Management

Commodity: Potato

Objectives:

To find out the effect of five different Arsenic (As) levels on growth and yield of four potato varieties

Methodology:

The pot experiment was conducted at the Agronomy research field, Sher-e-Bangla Agricultural University, Dhaka, Bangladesh from November 2011 to February 2012. Pot experiment was conducted in natural conditions. All the pots were filled with similar soil. Experiment was provoked in Randomized Complete Block Design (RCBD) with three replications. Four potato varieties were used [(V₁) Cardinal, (V₂) Diamant, (V₃) Asterix and (V₄) Granola] as crop material. Different concentration levels [(As0) 0 mg As kg^-1 soil, (As₁) 10 mg As kg^-1 soil, (As₂) 20 mg As kg^-1 soil, (As₃) 30 mg As kg^-1 soil and (As₄) 40 mg As kg^-1 soil] of arsenic were taken as the treatments of the study. For the Arsenic treatment of soil, sodium meta arsenate (Na₂HAsO₄.7H₂O) was used as the source of Arsenic. Arsenic application was done by adding 0 mg kg^-1 soil, 10 mg kg^-1 soil, 20 mg kg^-1 soil, 30 mg kg^-1 soil and 40 mg kg^-1 soil Arsenate into soil of pot according to treatment. Collected data were statistically analyzed to find out the level of significance using MSTAT-C computer package programm. The mean difference was assessed by Duncan’s Multiple Range Test (DMRT) at 5% level of significance..

Source of Information: Int. J. Sustain. Agril. Tech. 10(8): 22-27, August 2014

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

As positively influenced the entire physiology, growth and yield of potato up to 10 mg As kg^-1 soil (As₁) but finally decreased with increasing As levels in soil.

Knowledge Management: Journal