Effect of Storage Conditions on the Physicochemical and Processing Qualities of Different Potato Genotypes Grown in Eastern Uganda
Tibesigwa, S.J., Kaaya, A., Atukwase, A., Wasukira, A., Kwaka, L.W, Parker, M.L
International Journal of Plant & Soil Science · pp. 272–281 · Published 3 May 2024
10.9734/ijpss/2024/v36i64630Abstract
The favourable environment in Eastern Uganda enables the growth of potato (Solanum tuberosum). However, it’s limited by lack of improved genotypes and inappropriate storage facilities. To address this, new potato genotypes including four CIP clones and four varieties from other regions were introduced by development partners. They also constructed ambient storage structures in Kapchorwa Municipality (1,800 m), Bennet (2,300 m), and Mbale City (1,200 m). This study was therefore designed to investigate the effectiveness of the ambient stores in maintaining the quality of the potato genotypes. During the study, the mean storage temperature ranged from 15.42oC in Bennet to 22.80oC in Mbale while the mean relative humidity ranged from 84.73% in Bennet to 79.58% in Mbale. The results showed significant (P< 0.05) differences due to variety. Storage duration and conditions led to a significant (P< 0.05) decline in the desired physiochemical characteristics and processing qualities of the stored potato genotypes. Potato genotype Victoria had the highest level of reducing sugars (0.08%) and least acceptable chip colour while Rwangume had the lowest reducing sugars (0.05%) and a more acceptable chip colour. In general, altitude and potato genotype influenced changes in the physicochemical and processing qualities of the potato genotypes during storage.
References (5)
- 1 The performance of potato markets in South Western Uganda [DOI]
- 2 Factors Influencing the Choice of Storage Technologies by Smallholder Potato Farmers in Eastern and Southwestern Uganda [DOI]
- 3 Participatory assessment of potato farming systems, production constraints and cultivar preferences in Uganda [DOI]
- 4 The qualitative parameters of potato tubers in dependence on variety and duration of storage [DOI]
- 5 Technical Report: Market and value chain analysis of ware potato from eastern Uganda with a focus on postharvest management practices and losses
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