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Storability of Tubers of Some Indigenous Potato Cultivars Under Natural Storage

M. J. Hossain
Tuber Crops Research Centre, Bangladesh Agricultural Research Institute, Joydebpur, Gazlpur.

M. Zakaria
Tuber Crops Research Centre, Bangladesh Agricultural Research Institute, Joydebpur, Gazlpur.

M. K. R. Bhuiyan
Tuber Crops Research Centre, Bangladesh Agricultural Research Institute, Joydebpur, Gazlpur.

A. E. Hossain
Tuber Crops Research Centre, Bangladesh Agricultural Research Institute, Joydebpur, Gazlpur

A. K. M. A. Habib
Tuber Crops Research Centre, Bangladesh Agricultural Research Institute, Joydebpur, Gazlpur.

Abstract/ Executive Summary:

Keeping quality of three sizes of tubers of 20 indigenous potato cultivars against one standard exotic variety Cardinal has been studied for 210 days (March to September) under natural storage condition. Weight loss was 15.23 per cent for indigenous cultivars and 31.15 per cent for Cardinal, while rottage loss was 3.17 per cent and 39.16 per cent, respectively. Smaller tubers suffered maximum weight loss and minimum rottage loss. Indigenous cultivars showed better performance for qualitative characters like, days to sprouting, 100 per cent sprouting and shrivelling. While the check variety Cardinal was better for quantitative characters like, number, length and weight of sprouts per tuber.

Keywords: Tubers, Indigenous potato cultivars, Storage

Location: Tuber Crops Research Centre, Bangladesh Agricultural Research Institute

Start Date: 00-00-1989

End Date: 00-00-1989

Program Area: Postharvest and Agro-processing

Commodity: Potato

Objectives:

To see the storability of potato tubers of some indigenous cultivars under natural storage condition of Bangladesh.

Methodology:

The experiment was conducted at the Tuber Crops Research Centre, Bangladesh Agricultural Research Institute during 1989. Twenty indigenous potato cultivars, namely Bograi, Bograilal, Deshilal, Deshisada, Dohazarilal, Hagrai, Indurkani, Jalpai, Jhaubilati, Lalbilati, Lalmadda, Lalitasada, Lalsheel, Rangpurilal, Rupsha, Sadapakri, Sadapatnai, Shilbilati, Sindurknata and Surjamukhi were used in the study. One standard exotic variety Cardinal was used as check. Three sizes of tubers (large above 30g; medium 21-30g and small 10-20g per tuber) were included in the study. Immediately after harvesting, initial weights of 2 kg tubers of each variety and size were taken on 1 March, 1989. The tubers were stored in well ventilated and insect proof netted boxes under diffused light. Weighing of tubers were continued at 30 days intervals for 210 days. Rotted tubers after recording number and weight and identifying the causes of rot, were discarded. Tubers were checked weekly for days to sprouting. 100 per cent sprouting and shrivelling. Number of sprouts per tuber was recorded at different dates of weighing. Length and weight of sprouts and physical condition of tubers were recorded once after 210 days. Physical condition of tubers was evaluated by eye estimation following 1-10 scale (1- firm and 10-shrivelled). Data on temperature and humidity of the experimental place were recorded weekly by thermohygrometer.

Source of Information: Bangladesh Hort. 20(2) : 81-88, 1992; ISSN 0379-4288

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Tubers of indigenous cultivars included in this study can be stored for more than 7 months under warm climate natural storage of Bangladesh.

Knowledge Management: Journal