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Studies on the Comparative Morphological Characters and Yield of Seven Varieties of Sweet Potato

A. M. Farooque
Lecturer
Department of Horticulture, Bangladesh Agricultural University, Mymenslngh.

Akbar Husain
Head of the Department of Horticulture
Department of Horticulture, Bangladesh Agrlcultural Uuiversity, Mymensingh.

Abstract/ Executive Summary:

To compare the yielding ability and to assess the distinguishing external morphological characters of seven varieties of sweet-potato, an investigation was carried out in the Agricultural University Farm, Mymensingh during the period from November 1971 to April 1972. The varieties studied were Nancy Hall, Porto Rico, Centennial, A. U. Selection No.2, White Local, Pelican Processor and Julian. They yielded 196.98, 201.43, 200.00, 222.06, 18 6.00, 198,00 and 196.98 maunds of tuberous roots per acre respectively. Under the experimental condition A. U. Selection No. 2 was found to be statistically superior to the rest of the varieties. The distinguishing morphological characters were also established .

Keywords: Sweet Potato, Yield, Morphological characters

Location: Bangladesh Agricultural University Farm, Mymensing.

Start Date: 00-11-2071

End Date: 00-04-1972

Program Area: Crop-Soil-Water Management

Commodity: Sweet potato

Objectives:

To assess the performances and morphological features of these varieties along with two other varieties.

Methodology:

Seven varieties of sweet-potato, namely, Nancy Hall, Porto Rico, Centennial, Agriculture University (A. U.) Selection No.2, White Local, Pelican Processor, and Julian were the materials for the study. Except A. U. Selection No. 2 and White Local the rest of the varieties were procured from U. S. A. The variety A. U. Selection No.2 has been developed by the Department of Horticulture, Bangladesh Agricultural University, Mymensingh through selection from a mixed population of hybrid, seeds of American origin. The local variety of white skin with white flesh was included in this experiment and named as White Local. The experiment was conducted at the Bangladesh Agricultural University Farm, Mymensing during the period from November 1971 to April 1972. After land preparation, the experiment was laid out following a randomized block design, An unit plot size was 36' x 21'. The experiment was replicated thrice. Apical shoot cuttings were used as planting materials. Cuttings of 9' length Were planted at a distance of 3' in rows and 1' apart on the 23rd November 1972. Manures and fertilizers were applied at the rate of 150 maunds of well rotten cowdung, 1 maund 14 seers of Urea, 2 maunds 23 Seers of T. S. P., and 3 maunds 4 seers of Muriate of Potash per acre. Irrigation was given as and when required. The varieties were treated uniformly. The crop was harvested on the 24th April, 1972.To assess the comparative external morphological characters, leaf, stem and tuberous roots were included in the study. The data on the number of vines and leaves, length of vines, weight of vines per plant and per plot, number and weight of sweet potatoes per plant, and weight of sweet potatoes per plot were analysed statistically to find out the statistical significance of the performances of these varieties.

Source of Information: Bangladesh Horticulture, Vol, 1 (2), 1973

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The varieties studied were Nancy Hall, Porto Rico, Centennial, A. U. Selection No.2, White Local, Pelican Processor and Julian. They yielded 196.98, 201.43, 200.00, 222.06, 18 6.00, 198,00 and 196.98 maunds of tuberous roots per acre respectively. Under the experimental condition A. U. Selection No. 2 was found to be statistically superior to the rest of the varieties. The distinguishing morphological characters were also established .

Knowledge Management: Journal