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Performance of Some Potato Accessions of Usa and Bangladesh in Relation to Dry Matter Yield and Biochemical Constituent

M. A. Mahamud
Department of Agricultural Chemistry, BAU, Mymensingh-2202, Bangladesh

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

M. A. Rahim
Department of Horticulture, BAU, Mymensingh-2202, Bangladesh

P. R. Sheel
Department of Agricultural Chemistry, BAU, Mymensingh-2202, Bangladesh

Abstract/ Executive Summary:

Present research was designed to evaluate the dry matter yield and biochemical constituents of twenty two potato accession of USA in comparison with two Bangladeshi varieties. Studied biochemical constituents were starch, protein and vitamin C contents. Analyses were performed from November 2014 to April 2015 in different laboratories of Bangladesh Agricultural University, Mymensingh. Potato accessions differed significantly with respect to dry matter content and biochemical parameters. Dry mater content was found highest in accession AC 10110. Considering biochemical constituent, the accession AC 10062 showed highest protein and vitamin C contents. On the other hand, accession AC 10081 had the highest starch content. Significant positive correlation was observed between dry matter and starch content while significant negative correlation was observed between starch and protein contents. Considering both dry matter yield and biochemical parameters AC 10081 was found as the best USA potato accession for cultivation in Bangladesh.

Keywords: Potato, Dry matter, Biochemical constituent

Location: Bangladesh Agricultural University, Mymensingh.

Start Date:

End Date:

Program Area: Variety and Species

Commodity: Potato

Objectives:

The work has been undertaken in order to characterize the inherent colored potato accessions in relation to dry mater yield and biochemical constituent (starch, protein and vitamin C) with a view to investigating the relationship among the accessions and selecting suitable ones for commercial cultivation under Bangladesh condition.

Methodology:

To determine the dry matter yield and biochemical constituent twenty two potato accessions of USA and two varieties from Bangladesh were used as experimental materials. Potato accessions from USA were AC 10016, AC 10062, AC 10063, AC 10064, AC 10068, AC 10069, AC 10072, AC 10073, AC 10074, AC 10076, AC 10077, AC 10078, AC 10081, AC 10097, AC 10109, AC 10110, AC 10112, AC 10120, AC 10122, AC 10123, AC 10125 and AC 10190, where thereof two varieties Diamant and Cardinal from Bangladesh. Sample potato tubers were collected from Horticulture Farm, Bangladesh Agricultural University, Mymensingh. Six uniformly shaped, disease free, healthy potato tuber of each accessions were collected from three replicated plots. Immediately after collection, each sample were kept in a labeled, air tight plastic zipper bag and stored at 4-6^oC temperature with 65-80% relative humidity. The chemical analysis was conducted in the laboratories of Department of Agricultural Chemistry, Biochemistry and Molecular Biology, and Professor Muhammed Hussain Central Laboratory, Bangladesh Agricultural University Mymensingh.
Tuber dry matter content was determined after oven drying the potato tuber at 80^oC for 72 hours until constant weight attained. Starch content of the potato tubers were determined by Fehling’s method as outlined by Jacskon (1973) and McCardy et al. (1950) with the use of alkaline solution. Total N was analyzed using Kjeldahl method and used for the calculation of the crude protein concentration by multiplying with a conversion factor of 5.85. Vitamin C was determined by the indophenol dye extraction method (Ranganna, 1994). This procedure was based upon the quantitative discoloration of 2, 6 dichlorophenol indophenol by ascorbic acid. Data were analyzed for ANOVA with the help of a computer package program of MSTAT (Mathematical and Statistical calculation). A one way ANOVA was made by F variance test. The pair comparisons were performed by DMRT test at 5% level of probability (Gomez and Gomez, 1984).

Source of Information: J. Bangladesh Agril. Univ. 13(2): 215–220, 2015

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Both USA potato accessions and Bangladeshi potato varieties showed variability in relation to dry matter yield and biochemical constituents. Among USA accessions, AC 10112 produced the highest dry matter yield. On the other hand the highest starch content was found in AC 10081 though highest protein and vitamin C were biosynthesized by the accession AC 10062. Among the Bangladeshi varieties, neither Diamant nor Cardinal could compete with the best USA accessions (AC 10112, AC 10081 and AC 10062) in relation to dry matter yield, starch, protein and vitamin C contents.

Knowledge Management: Journal