Assay for seed vigour

A - Human Necessities – 01 – C

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A01C 1/00 (2006.01) A01C 1/02 (2006.01)

Patent

CA 2445760

Vigour of the seed of various crops, especially small-seeded crops, is determined by measuring volatile gases emitted from the seed when exposed to various conditions. For example, ethanol produced by canola (Brassica napus and Brassica rapa) seed in an enclosed container stored for 24 hours at room temperature after the seed has been made up to 20 % moisture is measured by gas chromatography, other gas monitoring instrumentation or by colour change in an indicator substance. The quantity of ethanol determined by any method of analysis indicates the vigour of the seed.

La vigueur de la semence de diverses plantes cultivées, notamment des plantes à petites graines, est déterminée par mesure des gaz volatiles émis par la semence lorsqu'elle est exposée à diverses conditions. Par exemple, l'éthanol produit par la semence de colza canola (<i>Brassica napus et Brassica rapa) </i>dans un contenant fermé stocké durant 24 heures à température de laboratoire après ajout de 20 % d'humidité à la semence est mesuré par chromatographie gazeuse, par d'autres appareillages de surveillance des gaz ou par changement de couleur dans une substance indicatrice. La quantité d'éthanol déterminée par cette méthode d'analyse indique la vigueur de la semence.

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