Method and a device for making images of the quantum efficiency of the photosynthetic system with the purpose of determining the quality of plant material and a method and a device for measuring, classifying and sorting plant material
US7435876B2 · kind B2 · utility
2Cited by
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9Claims
0Family size
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Key dates
| Filing date | Oct 31, 2003 |
| Grant date | Oct 14, 2008 |
| Priority date | — |
| Expiry date | Jan 24, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/635
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for determining the quality of plant material by making chlorophyll fluorescence images of the material by scanning the material with a beam of electromagnetic radiation so that the chlorophyll present is excitated, and measuring the chlorophyll fluorescence with an imaging detector. From the fluorescence images obtained with a fast and a slow scan, the image of the quantum efficiency of the photosynthetic system of the plant material is calculated. A device for measuring the chlorophyll fluorescence images and a method and devices for sorting and classifying plant material are also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.