"The SPCS maintains high standards for seed health and purity and operates by exerting official control over initial propagating material, the length of the multiplication chain, and application of strict tolerances for diseases, including those caused by viruses."
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| URI | http://bartoc.org/en/node/18425 |
| Homepage | https://www.sasa.gov.uk/sites/default/files/SPCS%20Leaflet%20English%20v13.pdf |
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| Size | 5 Classes (2017-01). |
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