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| Web URL(s): | http://www.swss.ws/wp-content/uploads/2022_SWSS_Proceedings_Final-04-002.pdf#page=94 Last checked: 12/12/2022 Requires: PDF Reader Notes: Item is within a single large file |
| Publication Type: | Report |
| Content Type: | Abstract or summary only |
| Author(s): | Osburn, A. W.; Bowling, R.; Bagavathiannan, M. V. |
| Author Affiliation: | Osburn and Bagavathiannan: Texas A&M University, College Station, TX; Bowling: Texas A&M University, Dallas, TX |
| Title: | Effect of burial depth on seedbank persistence of Poa annua L. (annual bluegrass) across climatic gradients |
| Meeting Info.: | January 23-27, 2022 |
| Source: | Proceedings of the Southern Weed Science Society 75th Annual Meeting. Vol. 75, 2022, p. 28. |
| Publishing Information: | Biloxi, MS: Southern Weed Science Society |
| # of Pages: | 1 |
| Abstract/Contents: | "Annual bluegrass (Poa annua L.) is one of the most prolific and problematic weeds in various turfgrass systems across the United States (US) and beyond. This troublesome plant severely impacts the aesthetic value of turfgrass fields and drastically increases control costs. Further, it negatively impacts turfgrass stand density and playability of many turfgrass surfaces from golf course greens to athletic fields. Annual bluegrass has exhibited high persistence in turfgrass systems, but the role of seedbank longevity in long-term persistence of this species is unknown. In the fall of 2020, ten unique populations originating from various plant hardiness zones across the US were buried in seven locations at two depths, surface and 5 cm. For each treatment, a total of 250 viable seeds were mixed in weed-free native soil of the burial site and placed in a polyethylene mesh bag, which was buried at the respective depth in three replicates. A subset of the seed for each population has been stored under room temperature for comparison. The bags are retrieved at 6-month intervals over a period of 3 years. Upon retrieval, the bags are cut open and placed on the surface of plastic trays for germination evaluation in the greenhouse. Germination is observed at weekly intervals over the course of 6 weeks. The trays are then subjected to cold treatment (4 C) for 3 weeks to facilitate dormancy breaking and then moved to the greenhouse for further germination observations. As of now, data from the first 6-month after burial (bags retrieved in Mar/April 2021) is available. Seedbank persistence was greater in seed sources obtained from northern plant hardiness zones, compared to those from the more southern regions. This is an ongoing study and results will be updated as further seed bag retrievals are evaluated. Findings shed light on the seedbank persistence of annual bluegrass across a range of environmental gradients." |
| Language: | English |
| References: | 0 |
| See Also: | Updated version appears in Abstracts of the Annual Meeting of the Weed Science Society of America 2022, R=329469 .R=329469 Updated version appears in Abstracts of the Annual Meeting of the Weed Science Society of America, 2023, p. 378, R=331124.R=331124 |
| Note: | This item is an abstract only! |
| ASA/CSSA/SSSA Citation (Crop Science-like – may be incomplete): | Osburn, A. W., R. Bowling, and M. V. Bagavathiannan. 2022. Effect of burial depth on seedbank persistence of Poa annua L. (annual bluegrass) across climatic gradients. South. Weed Sci. Soc. Proc. 75:p. 28. |
| Fastlink to access this record outside TGIF: | http://tic.msu.edu/tgif/flink/RECNO/324008 |
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| Web URL(s) : | http://www.swss.ws/wp-content/uploads/2022_SWSS_Proceedings_Final-04-002.pdf#page=94 Last checked: 12/12/2022 Requires: PDF Reader Notes: Item is within a single large file |
| MSU catalog number: | b2207931 |
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