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| Web URL(s): | https://scisoc.confex.com/scisoc/2018am/meetingapp.cgi/Paper/112773
Last checked: 11/15/2018
Requires: JavaScript |
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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Trappe, Jon M.;
Sessoms, Florence;
Petrella, Dominic P.;
Watkins, Eric;
Patton, Aaron J. |
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| Author Affiliation: | Trappe and Sessoms: Department of Horticultural Science, University of Minnesota-Twin Cities, St. Paul, MN; Petrella and Watkins: Department of Horticultural Science, University of Minnesota, St. Paul, MN; Patton: Department of Horticulture and Landscape Architecture, Purdue University, West Lafayette, IN |
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| Title: | Identifying and confirming natural weed suppression in fine fescues |
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| Section: | C05 turfgrass science
Other records with the "C05 turfgrass science" Section
Turfgrass pest management: Weed science and plant pathology
Other records with the "Turfgrass pest management: Weed science and plant pathology" Section
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| Meeting Info.: | Baltimore, Maryland: November 4-7, 2018 |
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| Source: | ASA, CSSA and SSSA International Annual Meetings. 2018, p. 112773. |
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| Publishing Information: | [Madison, Wisconsin]: [American Society of Agronomy, Crop Science Society of America, and Canadian Society of Agronomy] |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Cultivar evaluation; Fine fescues; Low maintenance; Weed control
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| Abstract/Contents: | "Fine fescues are a group of cool-season turfgrasses used for their low-input requirements. Previous research in field and greenhouse conditions has documented weed suppression by several fine fescue cultivars, but further research is needed to distinguish allelopathy from resource competition. Plant breeders and other turfgrass researchers would benefit from efficient methods by which to identify allelopathic fine fescues. Therefore, we conducted field and greenhouse experiments to screen accessions of hard fescue (Festuca brevipila), Chewings fescue (Festuca rubra ssp. commutata), and strong creeping red fescue (Festuca rubra ssp. rubra) for potential allelopathy. Seven accessions from each fine fescue species were planted in fields historically dominated by crabgrass (Digitaria spp.) in St. Paul, MN and West Lafayette, IN in April 2017. A similar trend in fine fescue accession performance on crabgrass biomass and seedhead reduction was observed between the two locations. These results led to the selection of the best and worst performing accessions (five Chewings fescues and one strong creeping red fescue) for further evaluation in a growth chamber experiment; a pot-based bio-interference study was used to evaluate crabgrass growth responses while growing amongst varying levels of each fine fescue accession. Response variables included chlorophyll content, morphological characteristics, and overall biomass of the crabgrass and fine fescue plants. Preliminary results indicate different levels of weed suppression across the fine fescue accessions tested in both the field and growth chamber experiments. In the field, fine fescue accession had a significant effect on crabgrass germination and emergence, as well as crabgrass biomass and seedhead production. In the bio-interference study, accession significantly affected crabgrass biomass, tiller count, and seedhead production. Further research is needed to better understand the allelopathic mechanism responsible for weed suppression observed in the field and laboratory." |
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| Language: | English |
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| References: | 0 |
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| Note: | This item is an abstract only!
"174-1" |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Trappe, J. M., F. Sessoms, D. P. Petrella, E. Watkins, and A. J. Patton. 2018. Identifying and confirming natural weed suppression in fine fescues. Agron. Abr. p. 112773. |
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Last checked: 11/15/2018
Requires: JavaScript |
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