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Barley (Hordeum vulgare) seed dormancy as related to glumella characteristics (1986)

Lenoir, C. ; Corbineau, F. ; Côme, D.

Oxford, UK : Blackwell Publishing Ltd

Physiologia plantarum 68 (1986), S. 0

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ISSN: 1399-3054

Source: Blackwell Publishing Journal Backfiles 1879-2005

Topics: Biology

Notes: Dormancy of freshly harvested barley (Hordeum vulgare L. cv. Sonja) caryopses results mainly from glumellae which fix oxygen by polyphenol oxidase (EC 1.14.18.1)-mediated oxidation of phenolic compounds present in high amounts. The breaking of dormancy during dry storage is not due to qualitative or quantitative modifications of the phenols or polyphenol oxidases. Glumellae of dormant caryopses start to take up oxygen at the beginning of inbibition, whereas those of non-dormant caryopses start to take up oxygen only after about 10 h. That delay should allow germination.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1111/j.1399-3054.1986.tb01930.x

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