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Influence of natural aging on the dynamics of water absorption by sunflower seed

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Seed germination rate depends to a large measure on the rate of water absorption. The dynamics of water absorption is in its turn affected by diverse biotic and abiotic factors. Five sunflower lines (Helianthus annuus L.) were tested: ocms-74, cms-v-8931-3-4, ocms-22, ocms-98 and cms-ol-3, before and after natural aging for up to 12 months. The amount of water absorbed by sunflower seed in a 24 hour period decreased with age. The rate of decrease was higher both in seed stored in ambient conditions than in those stored at 4°C and 80-85% relative humidity and during imbibition at reduced water potentials achieved using solutions of polyethylene glycol.
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Document Type: Research Article

Publication date: April 1, 2005

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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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