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| Web URL(s): | https://listings.lib.msu.edu/nwtgc/1980.pdf#page=16
Last checked: 01/16/2017
Requires: PDF Reader |
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| Publication Type:
| Proceedings |
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| Author(s): | Johnston, W. J. |
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| Author Affiliation: | Assistant Professor, Washington State University, Pullman, WA |
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| Title: | Air pollution and the green industry |
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| Meeting Info.: | Sunriver Lodge, Sunriver, OR, Sep. 22-25, 1980 |
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| Source: | Proceedings of the 34th Northwest Turfgrass Conference. 1980, p. 16-21. |
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| Publishing Information: | Spokane, WA: Northwest Turfgrass Association |
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| # of Pages: | 6 |
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| Keywords: | TIC Keywords: Festuca arundinacea; Air pollution; Air pollutants; Ozone; Fluoride; Sulfur dioxide; Chemical injury; Injurious factors
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| Abstract/Contents: | Answers some of the questions that arise when one thinks of air pollution. Pollutant in the Pacific Northwest are sulfur dioxide, fluoride, ethylene, nitrogen dioxide, peroxyacetyl nitrates (PAN), ozone, acid rain, and industrial dusts. Also carbon monoxide, even though it is not considered a phytotoxic air pollutant. The motor vehicle is the single most important source of air pollution. Industrial sources are second, and generation of steam and electricity produce slightly less. Chronic symptoms of vegetation are 1) Sulfur dioxode: Gradual yellowing of leaf interveinal area; progressive bleaching of the leaf; tissue does not collapse following injury. 2) Fluoride: Initial water soaked appearance of the leaf tip; subsequent reddish-brown lesions appear and extend down the leaf in a fairly uniform front. 3) Ozone: Initially light brown lesions appear; necrosis and bleaching of the leaf tip follows; red fescue has minute, dark brown stipples; ryegrass has a glossy dark brown color to the entire leaf. Presents data showing that injury can be caused without obvious signs. Doing a six week ozone exposure (0.08 ppm for 7hrs/day) the tall fescue showed no visible signs of injury. Leaf dry weight, above ground dry weight, and leaf area weight were significantly reduced. Compares the results with previous studies on ryegrass. Proposed mitigating actions include being aware of the problem, recognizing the symptoms and selecting resistant varieties. Exposure to ozone reduced both Mg and total chlorophyll in the leaves of tall fescue. P, K, and Ca although statistically unaffected were reduced somewhat. These types of trends indicate that many physiological processes were impaired in the plants due to exposure to ozone. |
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| Language: | English |
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| References: | 0 |
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| Note: | Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Johnston, W. J. 1980. Air pollution and the green industry. p. 16-21. In Proceedings of the 34th Northwest Turfgrass Conference. Sunriver Lodge, Sunriver, OR, Sep. 22-25, 1980. Spokane, WA: Northwest Turfgrass Association. |
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| Web URL(s):
https://listings.lib.msu.edu/nwtgc/1980.pdf#page=16
Last checked: 01/16/2017
Requires: PDF Reader |
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MSU catalog number: SB 433 .N6 |
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