Alfalfa cultivars respond differently to seed germination inhibition by Kentucky bluegrass
Allelopathic effects may be a contributing factor in the mixed success of legume re-establishment in Kentucky bluegrass ( Poa pratensis L.)-dominated pastures. Under controlled conditions, we evaluated whether aqueous shoot or root extracts from Kentucky bluegrass would affect seed germination for three alfalfa ( Medicago sativa L.) cultivars after a 7-day incubation period. Both shoot and root extracts had an inhibitory effect on alfalfa seed germination for all cultivars. AAC Trueman was the least affected and AC Caribou the most affected by aqueous Kentucky bluegrass root extracts, suggesting that the capacity for rejuvenating old pastures may vary among alfalfa cultivars.
Authors
- Y. A. Papadopoulos
- Chantal Lachance (ORCID: https://orcid.org/0000-0003-0370-6298)
- J. L. Duynisveld
- Kathleen Glover
- Vincent Poirier (ORCID: https://orcid.org/0000-0002-5182-4291)
- Marie‐Noëlle Thivierge (ORCID: https://orcid.org/0000-0003-0246-2746)
- Julie Lajeunesse (ORCID: https://orcid.org/0000-0002-7282-9569)
- C. Lafrenière (ORCID: https://orcid.org/0000-0001-6917-7689)
- Dalel Abdi (ORCID: https://orcid.org/0000-0002-0209-2370)
- I. B. Mandell (ORCID: https://orcid.org/0000-0003-0030-0698)
- Achref Meddeb Slama
- Renée-Frédérique Duchesneau
- Emilie Cheguem
Institutions
- Université du Québec en Abitibi-Témiscamingue (CA)
- Grain Research Centre (CA)
- Quebec Rehabilitation Research Network (CA)
- Quebec Research and Development Centre
- Kentville Research and Development Centre
- University of Guelph (CA)
Publication Details
- Journal
- Canadian Journal of Plant Science
- Published
- 2025-01-01
- DOI
- https://doi.org/10.1139/cjps-2024-0107
- Primary Topic
- Turfgrass Adaptation and Management
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Fondation de l’Université du Québec en Abitibi-Témiscamingue
- Beef Cattle Research Council
- Agriculture and Agri-Food Canada