STUDY ON PROCESSING QUALITY OF SOME POTATO VARIETIES AS INFLUENCED BY GROWING ENVIRONMENT
Date
2018-06
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
DEPARTMENT OF AGRONOMY, SHER-E-BANGLA AGRICULTURAL UNIVERSITY
Abstract
A study was conducted to investigate the influence of growing environment on processing quality
of five potato ( Solanum tuberosum L.) varieties (Asterix, Courage, Lady Rosetta, Felsina and
Dura) grown at Panchagarh, Dhaka and Munshiganj in Bangladesh during 2017-2018. The
experiment consisted of 2 factors: Factor A : Location ( 3 locations) as - P: Panchagarh, D:
Dhaka, M: Munshiganj; Factor B : Potato variety (5 varieties) as-V
1
: Asterix, V
:
Lady Rosetta, V
4
: Felsina, V
: Dura. Each varieties from each locations were collected and
stored at ambient conditions for 60 days in the laboratory of Sher-e- Bangla Agricultural
5
University, Dhaka-1207. The quality of tubers viz., dry matter percentage, total soluble solids,
firmness, weight loss percentage, specific gravity, starch percentage, fleshcolor, chipscolor and
chips were made from them was evaluated at varying storage periods. Tubers from Lady Rosetta
variety had a high specific gravity (1.0840 g cm
-3
) and dry matter percentage (22.7%) when
grown in Panchagarh and a lower specific gravity (1.0413 g cm
-3
) and dry matter percentage
(20.8%) when grown in Munshiganj. There was a progressive reduction in specific gravity, dry
matter percentage, firmness, crispness with increasing of storage time and increasement in total
soluble solid with advancing storage period. Variety with higher dry matter concentration
maintained a better quality than variety with a lower dry matter content. It is reasonable to
conclude that Lady Rosetta variety can produce tubers with a high dry matter percentage under
Panchagarh conditions. In ambient storage the result revealed that the quality parameter of potato
such as dry matter percentage, firmness, weight loss percentage, specific gravity slowly
decreased upto 40 days after storage (DAS) and thereafter sharply lost this values. So it may be
concluded that farmers of Bangladesh can store their potato upto 40 DAS without sacrificing its
quality.
2
: Courage, V
3
Description
A Thesis
Submitted to the Faculty of Agriculture,
Sher-e-Bangla Agricultural University, Dhaka,
in partial fulfilment of the requirements
for the degree of
MASTER OF SCIENCE (MS)
IN
AGRONOMY
SEMESTER: JANUARY-JUNE, 2018
Keywords
POTATO VARIETIES