An Agriculture and Agri-Food Canada researcher is looking for seed samples of common ragweed as part of a study on the influence of genetic and environmental variations.
Manon Bélanger wants seed from a wide geographic distribution and as well as different habitats.
To contribute to her research follow these instructions:
On a bright sunny day, select mature plants from a single location. Shake the plants in a large paper bag to collect mature seeds only. Clean seeds to remove any vegetative and insect debris. Dry at ambient air temperature for one week.
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Place seeds in brown paper envelope and seal with tape. Use one envelope per location. For each collection site, please supply the following information:
Date of collection;
Average height of common ragweed;
Type of habitat (urban sidewalk, roadsides, field edge, field (crop), wasteland etc..);
Record dominant neighbouring species present (three maximum);
Type of substrate (gravel, asphalt, soil (loam, sand, clay, etc..)
Location (nearest town, province/state)
GPS or latitude and longitude (if possible)
To send the seeds: Place all envelopes with seeds in a padded brown envelope and send by regular mail to Manon Bélanger, Horticultural Research and Development Centre Agriculture and Agri-Food Canada 430 boul. Gouin, Saint-Jean-sur-Richelieu (Québec) Canada J3B 3E6.
At the same time send an e-mail to: belangerm@ agr. gc.ca to inform her that the seeds have been sent by mail.
