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| Web URL(s): | https://dl.sciencesocieties.org/publications/jeq/articles/32/3/834
Last checked: 12/16/2016
https://dl.sciencesocieties.org/publications/jeq/pdfs/32/6/834
Last checked: 12/16/2016
Requires: PDF Reader |
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| Publication Type:
| Refereed |
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| Author(s): | Palazzo, Antonio J.;
Cary, Timothy J.;
Hardy, Susan E.;
Lee, C. Richard |
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| Author Affiliation: | Palazzo, Cary, Hardy: U. S. Army Engineer Research and Development Center, Cold Regions Research and Enineering Laboratory, Hanover, New Hampshire; Lee: U. S. Army Engineer Research and Development Center, Environmental Laboratory, Vicksburg, Mississippi |
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| Title: | Root growth and metal uptake in four grasses grown on zinc-contaminated soils |
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| Section: | Technical reports: Heavy metals in the environment
Other records with the "Technical reports: Heavy metals in the environment" Section
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| Source: | Journal of Environmental Quality. Vol. 32, No. 3, May/June 2003, p. 834-840. |
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| Publishing Information: | Madison, Wisconsin: American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America |
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| # of Pages: | 7 |
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| Keywords: | TIC Keywords: Soil contamination; Root growth; Uptake; Zinc; Slope; Shoot growth; Festuca ovina subsp. duriuscula; Thinopyrum intermedium; Poa compressa; Festuca arundinacea; Sewage sludge; Growth rate
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| Cultivar Names: | Reliant; Oahe; Ruebens; K-31 |
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| Abstract/Contents: | "Depth and area of rooting are important to long-term survival of plants on metal-contaminated, steep-slope soils. We evaluated shoot and root growth and metal uptake of four cool-season grasses grown on a high-Zn soil in a greenhouse. A mixtrure of biosolids, fly ash, and burnt lime was placed either directly over a Zn-contaminated soil or over a clean, fine-grained topsoil and then the Zn-contaminated soil; the control was the clean topsoil. The grasses were `Reliant' hard fescue (Festuca brevipila R. Tracy), `Oahe' intermediate wheatgrass [Elytrigia intermedia (Host) Nevski subsp. intermedia], `Ruebens' Canada bluegrass (Poa compressa L.), and `K-31' tall fescue (Festuca arundinacea Schreb.). Root growth in the clean soil and biosolids corresponded to the characteristic rooting ability of each species, while rooting into the Zn-contaminated soil was related to the species' tolerance to Zn. While wheatgrass and tall fescue had the strongest root growth in the surface layers (0-5 cm) of clean soil or biosolids, wheatgrass roots were at least two times more dense than those of the other grasses in the second layer (5-27 cm) of Zn-contaminated soil. When grown over Zn-contaminated soil in the second layer, hard fescue (with 422 mg/kg Zn) was the only species not to have phytotoxic levels of Zn in shoots; tall fescue had the hightest Zn uptake (1553 mg/kg). Thus, the best long-term survivors in high-Zn soils should be wheatgrass, due to its ability to root deeply into Zn-contaminated soils, and hard fescue, with its ability to effectively exclude toxic Zn uptake." |
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| Language: | English |
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| References: | 25 |
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| Note: | Figures
Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Palazzo, A. J., T. J. Cary, S. E. Hardy, and C. R. Lee. 2003. Root growth and metal uptake in four grasses grown on zinc-contaminated soils. J. Environ. Qual. 32(3):p. 834-840. |
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| Web URL(s):
https://dl.sciencesocieties.org/publications/jeq/articles/32/3/834
Last checked: 12/16/2016
https://dl.sciencesocieties.org/publications/jeq/pdfs/32/6/834
Last checked: 12/16/2016
Requires: PDF Reader |
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MSU catalog number: S 900 .J6 |
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