Osmotic priming of tomato seeds: effects on germination, field emergence, seedling growth, and fruit yield
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ArticleLanguage: En Publication details: 1987Subject(s):
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Journal of the American Society for Horticultural Science v. 112, no. 3, p. 427-432615277Summary: Seeds of the cultivars UC204 and 6203, primed in aerated solutions of 3% KNO3 (w/v) or of polyethylene glycol 8000 (PEG) of equivalent osmotic potential (-1.25 MPa; 314 g/kg of water) at 20øC for 7 days, were rinsed and dried in forced air at 30ø. Under laboratory conditions, seeds primed in either osmoticumgerminated more rapidly than untreated seeds at 20 and 30ø. At 10ø, the PEG treatment was of little benefit for either cv., while the KNO3 treatment still reduced the time to 50% germination to 60-80% of the control value. Priming did not affect the final germination percentage. Seedling emergence in the field wasevaluated in March
| Item type | Current library | Collection | Call number | Copy number | Status | Date due | Barcode | Item holds | |
|---|---|---|---|---|---|---|---|---|---|
| Article | CIMMYT Knowledge Center: John Woolston Library | Reprints Collection | REP-4221 (Browse shelf(Opens below)) | 1 | Available | 615277 |
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Tables, graphs, literature cited p. 431
Seeds of the cultivars UC204 and 6203, primed in aerated solutions of 3% KNO3 (w/v) or of polyethylene glycol 8000 (PEG) of equivalent osmotic potential (-1.25 MPa; 314 g/kg of water) at 20øC for 7 days, were rinsed and dried in forced air at 30ø. Under laboratory conditions, seeds primed in either osmoticumgerminated more rapidly than untreated seeds at 20 and 30ø. At 10ø, the PEG treatment was of little benefit for either cv., while the KNO3 treatment still reduced the time to 50% germination to 60-80% of the control value. Priming did not affect the final germination percentage. Seedling emergence in the field wasevaluated in March
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