G - Physics – 01 – N
Patent
G - Physics
01
N
G01N 33/02 (2006.01) G01H 1/00 (2006.01) G01N 3/20 (2006.01) G01N 19/00 (2006.01) G01N 33/10 (2006.01)
Patent
CA 2738926
The present device enables measurement of the susceptibility of corn plants to root lodging. The device is used to push over a corn stalk and the force used to push over the stalk, and the vibration of the stalk caused by the push are recorded. As material breaks in the stalk, an accelerometer, measures stalk vibration response to the breaking events; the data is then recorded to allow quantitative measurements of the susceptibility of corn plants to root lodging. This allows meaningful comparisons of various hybrids at early stages of hybrid evaluation and advancement.
L'invention concerne un dispositif qui permet de mesurer la sensibilité de plants de maïs à la verse racinaire. Le dispositif est utilisé pour fléchir une tige de maïs et la force utilisée pour fléchir la tige, ainsi que la vibration de la tige causée par la poussée, sont enregistrées. Lorsque le matériau se casse dans la tige, un accéléromètre mesure la réponse vibratoire de la tige à l'événement de rupture; les données sont ensuite enregistrées pour permettre des mesures quantitatives de la sensibilité des plants de maïs à la verse racinaire. Ceci permet des comparaisons significatives entre divers hybrides à des stades précoces de l'évaluation et du développement des hybrides.
Armstrong Ashli J.
Barreiro Roberto
Baszczynski Christopher L.
Mann Julian Adin III
Meyer Terry Euclaire
Iowa State University Research Foundation Inc.
Oyen Wiggs Green & Mutala Llp
Pioneer Hi-Bred International Inc.
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