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Effect of Dates of Planting and Tuber Sizes on the Incidence of Rot of Potato

A. L. Khan
Potato Research Centre, Bangladesh Agricultural Research Institute, Gazipur, Bangladesh

M. S. Ali
Potato Research Centre, Bangladesh Agricultural Research Institute, Gazipur, Bangladesh

A. K. M. A. Habib
Potato Research Centre, Bangladesh Agricultural Research Institute, Gazipur, Bangladesh

M. J. Hossain
Potato Research Centre, Bangladesh Agricultural Research Institute, Gazipur, Bangladesh

Abstract/ Executive Summary:

A study with the potato variety, 'Kufri Sindhuri, (Indian), planted on November 5, 20 and December 5, 1982-83 having a determined crop period of 110 days, was conducted to find out the effect of dates of planting and tuber sizes on the incidence of tuber rot mainly caused by specie of fungi and bacteria under natural storage conditions from March to June 1983. The results revealed an increased incidence of damage with late planting. Average percentages of damage of November 5, November 20 and December 5 plantings were 22.9, 27.8 and 40.6% respectively.More extent of damage was encountered in larger tubers, the average percentages being 13.3, 33.1 and 45.0% respectively with potatoes having <28 mm, 28-45 mm and> 45 mm in sizes.

Keywords: Planting, Tuber sizes, Incidence, Potato

Location: Bangladesh Agricultural Research Institute, Gazipur

Start Date: 00-11-1982

End Date: 00-06-1983

Program Area: Crop-Soil-Water Management

Commodity: Potato, Diseases

Objectives:

To assess the effect of different dates, of planting and tuber sizes on tuber rot under natural storage.

Methodology:

The experiment was conducted at the Potato Research Centre (PRC) Bangladesh Agricultural Research Institute, Gazipur, during November 1982 to June 1983 with the potato variety, 'Kufri Sindhuri'. After harvest at the age of 110 days, the tubers were collected from the crop planted on 5.11.82, 20.11.11 and 5.12.82 and were graded into < 28 mm, 28-45 mm and> 45 mm sizes. Just after harvests on 22.2.83, -9.3.83 and 24.3.83 two kg. tubers of grade, after marking each with-a number were placed in small bamboo basket kept on netted wooden shelves, placed in varandha of PRC under diffused light Each treatment was replicated three times. The data were taken fortnightly up to June, 1983 and the percentage of damage was calculated from the differences of weights of rotten and healthy tubers. The rot causing organisms were, isolated, cultured and identified in the laboratory.

Source of Information: Bangladesh Journal of Agriculture. Vol: 9 (No-3), pp: 7-10, 1984

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Find out the effect of dates of planting and tuber sizes on the incidence of tuber rot mainly caused by specie of fungi and bacteria under natural storage conditions from March to June 1983. The results revealed an increased incidence of damage with late planting. Average percentages of damage of November 5, November 20 and December 5 plantings were 22.9, 27.8 and 40.6% respectively. More extent of damage was encountered in larger tubers, the average percentages being 13.3, 33.1 and 45.0% respectively with potatoes having <28 mm, 28-45 mm and> 45 mm in sizes.

Knowledge Management: Journal