Abstract
A huge postharvest losses, which are primarily cultivar dependent is a major concern in onion. Biochemical attributes, if exploited as markers, could be an alternative tool to screen the different cultivars to evolve strategies for reducing postharvest losses. Therefore, 34 short day onion varieties were analyzed for different biochemical parameters before storage and after 3 months of storage. Results revealed that there was significant difference among all the varieties for selected biochemical parameters. Also, the duration of storage was found to influence these biochemical contents significantly. Among different biochemical parameters total sugars, flavonoid contents and DPPH activity decreased significantly during the storage period. However, total phenol contents and total proteins increased significantly over the storage period.
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