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KMID : 0903619960370040522
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Journal of the Korean Society for Horticultural Science
1996 Volume.37 No. 4 p.522 ~ p.525
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Effect of Temperatures and Periods of Dehydration of Primed Seeds and Seed Moisture Content During Storaee on the Germinability of Red Pepper Seeds
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Jeong Yeon-Ok
Cho Jeoung-Lai
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Abstract
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Studies were conducted to find the effect of dehydration temperatures and periods of primed seeds and seed moisture content during storage on the germinability of red pepper seeds. Seeds were dehydrated at 20℃, 35℃ and 50℃ for different lengths of time. Primed seeds were surface-dried at 20℃ for 3 hours (17.2% seed moisture content : SMC) or dried-back at 35℃ for 3 hours (7.8% SMC). Seeds were stored in air-tight glass bottle at 4℃ for up to 3 months before germination at 15℃ and 35℃. Final percent germination was not influenced by dehydration temperatures and periods of primed seeds. The longer the dehydration periods after priming increased the days to 50% of the final germination percentage (T_(50)) and the mean number of days to germination (MDG), especially when germinated at 15℃ while dehydration temperatures did not affect them. After 3-month storage, surface-dried seeds shortened T_(50) and MDG than dried-back seeds when germinated at 15℃. But dehydration methods did not affect on germinability. The seed moisture content of surface-dried seeds were decreased from 17.2% to 8.3% after 3 months storage, while dried-back seeds were slightly decreased in moisture content. Surface-dried may be a better method for primed seeds when stored at 4℃.
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