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Web URL(s): | http://www.bioone.org/bioone/?request=get-document&issn=0890-037X&volume=014&issue=02&page=0252 Last checked: 11/2005 Access conditions: Item is within a limited access website |
Publication Type:
| Refereed |
Author(s): | Call, Neysa M.;
Coble, Harold D.;
Perez-Fernandez, Trinidad |
Author Affiliation: | Call: Graduate Research Assistant; Coble: Professor; and Perez-Fernandez: Graduate Research Assistant, Crop Science Department, North Carolina State University, Raleigh, NC |
Title: | Tropical soda apple (Solanum viarum) herbicide susceptibility and competitiveness in tall fescue (Festuca arundinacea) |
Section: | Research Other records with the "Research" Section
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Source: | Weed Technology. Vol. 14, No. 2, April-June 2000, p. 252-260. |
Publishing Information: | Champaign, IL: Weed Science Society of America. |
# of Pages: | 9 |
Keywords: | TIC Keywords: Solanum viarum; Herbicide injury; Herbicide resistance; Competition; Population dynamics; Festuca arundinacea; Percent living ground cover; Density; Weed density; Herbicide evaluation; Application rates; Growth; Tank mix; Weed control; Height; Dry weight
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Abstract/Contents: | "Tropical soda apple (TSA) was evaluated for response to 28 herbicide treatments. Treatments containing picloram or triclopyr controlled eight-leaf, 16-leaf, and 1-yr-old TSA greater than 90% 8 wk after treatment (WAT). Control of 1-yr-old TSA did not increase 8 WAT when triclopyr was mixed in diesel fuel rather than water. In greenhouse additive interference experiments, populations of 0, 1, 2, 4, 8, 16, 32, and 64 TSA plants/700cm² of tall fescue had no effect on tall fescue height. TSA height was affected by TSA population, and intraspecific TSA competition was expressed as etiolation at densities greater than 4 plants/700cm². Averaged over five periods of competition, predicted yield losses of tall fescue were 14, 16, 29, and 31% and 1, 11, 19, and 23% for 8, 16, 32, and 64 TSA plants/700cm², respectively, for each experiment. Differences in tall fescue dry matter response between experiments were attributed to ambient temperature. Dry matter per individual TSA plant decreased from 1.7 to 0.3 g as TSA density increased from 1 to 64 plants/700cm². Percent canopy coverage of TSA relative to an area of 700-cm² surface increased proportionally as tall fescue coverage decreased. After 10 wk of competition, TSA monopolized the canopy with coverage of 92 and 94%; tall fescue coverage was limited to only 7 and 5% in experiments I and II, respectively." |
Language: | English |
References: | 31 |
Note: | Tables Graphs |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Call, N. M., H. D. Coble, and T. Perez-Fernandez. 2000. Tropical soda apple (Solanum viarum) herbicide susceptibility and competitiveness in tall fescue (Festuca arundinacea). Weed Technol. 14(2):p. 252-260. |
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| Web URL(s): http://www.bioone.org/bioone/?request=get-document&issn=0890-037X&volume=014&issue=02&page=0252 Last checked: 11/2005 Access conditions: Item is within a limited access website |
| MSU catalog number: SB 610 .W44 |
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