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Early radicle emergence count after controlled deterioration (CD) predicts emergence potential better than final standard germination after CD in tomato varieties

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This work was carried out to test whether an early radicle emergence count after controlled deterioration (CD) predicts seedling emergence in tomato lots as well as a final count after CD. Controlled deterioration tests were carried out on seeds of 12 tomato varieties at 24% moisture content (m.c.), 47 and 49°C, for 48, 72, 96 and 120 hours. Single radicle emergence was counted 2, 3 and 4 days after sowing and final standard normal germination percentages were calculated after 14 days. Seedling emergence (SE) was conducted in peat moss at 20 ± 3°C, in an unheated glasshouse. Early radicle emergence counts gave higher correlation coefficient values than final counts after CD. Fourth day counts after 72 hours CD at 47 and 49°C gave the highest r values (0.92 and 0.79 at 47°C, 0.88 and 0.85 at 49°C for SE and MET, respectively). Early radicle emergence count after CD can be considered as an alternative, quicker method for vigour evaluation instead of final count after CD.
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Document Type: Research Article

Publication date: August 1, 2015

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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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