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Open Access The impact of light and high light on seed germination and the radicle emergence test

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Conditions must be precisely controlled when testing for seed vigour and this is especially important when test periods are short, such as for the radicle emergence (RE) test. To date the effect of light on the RE test has not been considered, although it is known that light can affect seed germination. We show that light can have a significant effect on the RE result for both oilseed rape and radish. When compared with testing under standard conditions, RE results were higher when conducted in the dark and lower when conducted in high light for the 15 oilseed rape and four radish seed lots tested. Implications for the use of RE to predict seed vigour are discussed.

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Keywords: LIGHT; OILSEED RAPE; RADICLE EMERGENCE; RADISH; SEED VIGOUR

Document Type: Research Article

Publication date: December 1, 2018

This article was made available online on September 21, 2018 as a Fast Track article with title: "The impact of light and high light on seed germination and the radicle emergence test".

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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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