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Determination of seed moisture constants (K E, C W) for the viability equation for watermelon, melon, and cucumber seeds

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The effect of moisture on seed longevity during experimental storage was investigated in cucumber (Cucumis sativus L.), melon (Cucumis melo L.), and watermelon (Citrullus lanatus Matsum and Nakai). Seeds were stored hermetically at various moisture contents between 8.0 and 17.0% (fresh weight basis) at 35°C for up to 215, 366, and 175 days for cucumber, melon, and watermelon, respectively. Normal germination percentages were determined periodically. A one-step approach was taken to analyze the effects of moisture on longevity and to estimate K E and C W. K E and C W values were found to be 4.86 and 1.59 for watermelon, 6.11 and 2.59 for melon, and 5.35 and 2.03 for cucumber, respectively. Watermelon seeds are the most sensitive to seed storage, whilst melon seeds have the greatest longevity. These constants can be used to predict the viability of these cucurbit seeds under various storage conditions.

Document Type: Research Article

Publication date: July 1, 2011

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  • Seed Science and Technology (SST) is one of the leading international journals featuring original papers and review articles on seed quality and physiology as related to seed production, harvest, processing, sampling, storage, distribution and testing. This widely recognised journal is designed to meet the needs of researchers, advisers and all those involved in the improvement and technical control of seed quality.
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