Abstract            Volume:14  Issue-5  Year-2026         Original Research Articles

Online ISSN : 2347 - 3215 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcret@gmail.com

Potato (Solanum Tubersum L.) is considered to be one of the strategic crops for ensuring food security in Ethiopia. Unavailability of improved storage facilities in Ethiopia is one of among major limiting factors to potato productivity. Therefore, the main objective of this research were to study the effect of storage duration on the biochemical properties of major potato varieties cultivated in the study area stored under modified dark room storage for 0, 30, 60 and 90 days. The biochemical characteristics were assessed at each 30 days end of storage. The study revealed that starch highest and least starch content was obtained for Jalegne (46.43%) and Degemign (44.95%) varieties respectively followed by Belete, the local “Sussallho”, and Gudagne. The highest (47.68%) and the least (33.96%) amount of starch were recorded at 0 and 90 days of storage periods. The study revealed that starch content was decreased significantly with increasing storage period. The highest and the least vitamin C was obtained for Degemign (45.32 mg/100gm) and Gudagne (35.06 mg/100gm) varieties respectively. The highest (1.26 Mg/gm) the least (0.90 Mg/gm) amount of reducing sugar content was measured prior to storage and at 90 days of storage periods respectively. In this study Jalegne (3.04%) and Gudagne (0.69%) had the highest and least amount crude protein content whereas total carbohydrate content was highest (86.44%) and least (62.04%) prior to storage and at 90 days of storage periods respectively. Therefore, the study showed that farmers can store their tubers in same way as possible in the warehouse used in this study. Further research should focus on improving the potato warehouse ventilation, airation, light interance as well as temperature and relative humidity control mechanism.

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