Maintenance of Vigour and Viability of Stored Pea (Pisum sativum L.) Seeds |
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Authors: | K. Ramamoorthy D. Kalavathi M. Paramasivam |
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Affiliation: | Contribution from the Department of Seed Technology, Agricultural College and Research Institute, TNGDNA U, Killikulam, Vallanad 627252, India |
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Abstract: | To determine the most efficacious midstorage hydration-dehydration treatment for preservation of vigour and viability of stored pea seeds ( Pisum sativum L.), cultivar Bonneville , three methods viz., soaking-drying, moisture equilibration-drying and moist sand conditioning-drying each at varying durations were evaluated. Irrespective of the durations of treatment, soaking-drying proved injurious. Though all durations of moisture equilibration excepting and 120 h outperformed the control, yet 48 h proved to be the best. Preconditioning with moist sand (5 % moisture content) with seed at a ratio of 1: 2.5 for different durations revealed 48 h to be the optimum, 72–96 h to be innocuous and thereafter injurious. Maintenance of membrane integrity and counteraction of lipid peroxidation may be the possible reasons for such beneficial effects. |
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Keywords: | Pisum sativum Hydration-dehydration viability membrane integrity lipid peroxidation |
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