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| Web URL(s): | https://dl.sciencesocieties.org/publications/aj/pdfs/65/5/AJ0650050730
Last checked: 12/09/2016
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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| Publication Type:
| Refereed |
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| Author(s): | De Mur, Antonio R.;
Youngner, V. B.;
Goodin, J. R. |
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| Author Affiliation: | De Mur: Standard Fruit Company, Honduras; Youngner: Professor, Agronomy, Department of Plant Sciences, University of California, Riverside, California; Goodin: Associate Professor, Texas Tech University, Lubbock, Texas |
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| Title: | Siduron toxicity to turfgrasses as affected by several climatic factors |
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| Source: | Agronomy Journal. Vol. 65, No. 5, September/October 1973, p. 730-732. |
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| Publishing Information: | Madison, WI: American Society of Agronomy |
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| # of Pages: | 3 |
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| Keywords: | TIC Keywords: Air temperature; Phytotoxicity; Shoot growth; Growth; Root growth; Root temperature; Climatic factors; Poa pratensis; Cynodon dactylon; Herbicides; Toxicity; Siduron; Transpiration
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| Cultivar Names: | Santa Ana; Merion |
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| Abstract/Contents: | "Because siduron is absorbed by roots and transported by the transpiration stream, its phytotoxicity might be affected by environmental factors that influence transpiration. To test this, bermudagrass (Cynodon dactylon L. 'Santa Ana') and Kentucky bluegrass (Poa pratensis L. 'Merion') were grown in controlled-environment chambers at various temperatures and light intensities and treated with 1 and 5 ppm siduron. Untreated plants were also included. Bermudagrass was susceptible to 1 and 5 ppm siduron concentrations at all temperatures and light intensities. Shoot growth was reduced more than root growth. When air temperature was 30/20 C (day/ night) the toxicity of the herbicides was greater than at a lower air temperature (22/15 C). Low light intensity decreased the toxicity of siduron to bermudagrass. Bluegrass was tolerant at all concentrations and all temperature and light treatments. Root temperature did not affect toxicity of the herbicide but maximum growth of bermudagrass was at 20 C and Kentucky bluegrass at 15 C root temperature. At 10 C, growth of both species was distinctly reduced. Differential rates of absorption are not the basis for selectivity." |
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| Language: | English |
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| References: | 16 |
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| Note: | Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
De Mur, A. R., V. B. Youngner, and J. R. Goodin. 1973. Siduron toxicity to turfgrasses as affected by several climatic factors. Agron. J. 65(5):p. 730-732. |
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| Web URL(s):
https://dl.sciencesocieties.org/publications/aj/pdfs/65/5/AJ0650050730
Last checked: 12/09/2016
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
| 
MSU catalog number: S 22 .A45 |
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