Full TGIF Record # 231934
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DOI:10.1081/PLN-200062795
Web URL(s):http://www.tandfonline.com/doi/full/10.1081/PLN-200062795
    Last checked: 10/31/2013
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http://www.tandfonline.com/doi/pdf/10.1081/PLN-200062795
    Last checked: 10/31/2013
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Publication Type:
i
Report
Author(s):Mora, M. L.; Demanet, R.; Vistoso, E.; Gallardo, F.
Author Affiliation:Mora and Gallardo: Departamento de Ciencias Químicas, Facultad de Ingeniería, Ciencias y Administración; Demanet: Departamento de Producción Agropecuaria, Facultad de Ciencias Agropecuarias y Forestales; Vistoso: Programa de Doctorado en Ciencias de Recursos Naturales, Universidade de La Frontera, Temuco, Chile
Title:Influence of sulfate concentration in mineral solution on ryegrass grown at different pH and aluminum levels
Source:Journal of Plant Nutrition. Vol. 28, No. 7, 2005, p. 1117-1132.
# of Pages:16
Publishing Information:New York, New York: Marcel Dekker, Inc.
Related Web URL:http://www.tandfonline.com/doi/abs/10.1081/PLN-200062795#.UnfmEBDOR8F
    Last checked: 11/04/2013
    Notes: Abstract only
Keywords:TIC Keywords: Aluminum; Evaluations; Lolium; Nutrient management; Phytotoxicity; Sulfatases; pH
Abstract/Contents:"The objective of this study was to clarify the effects of sulfate and phosphate at different sulfate concentrations, pH levels, and aluminum (Al) concentrations on aluminum phytotoxicity in ryegrass grown in mineral solution. The results demonstrated that, in general, both a high sulfate concentration and phosphate in the mineral solution had a positive effect on the detoxification of Al. Increased sulfate concentrations did not have a clear effect on the sulfur (S) or phosphorus (P) content within the shoot or root, because their uptake is regulated by Al uptake in the ryegrass, but a very good relationship was found between the P root content and Al root content (r = 0.944**; p ‚ȧ 0.01). The P and S root content and the aluminum:phosphorus molar ratio in roots were negatively correlated to shoot dry weight (r = -0.747**, -0.619** and -0.816**, respectively; p ‚ȧ 0.01), suggesting that Al tolerance is related to P nutrition. Relative root dry weight (RTI) measured at 90 d was a more sensitive indicator of Al toxicity than relative root or shoot length (RRL, RSL). This study showed that the most important Al detoxifying mechanisms in the ryegrass were apparently physiological Al-PO4 precipitation inside the root and chemical AlSO4+ complex formation in the nutritive solution."
Language:English
References:31
Note:Tables
Graphs
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Mora, M. L., R. Demanet, E. Vistoso, and F. Gallardo. 2005. Influence of sulfate concentration in mineral solution on ryegrass grown at different pH and aluminum levels. J. Plant Nutr. 28(7):p. 1117-1132.
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DOI: 10.1081/PLN-200062795
Web URL(s):
http://www.tandfonline.com/doi/full/10.1081/PLN-200062795
    Last checked: 10/31/2013
    Access conditions: Item is within a limited-access website
http://www.tandfonline.com/doi/pdf/10.1081/PLN-200062795
    Last checked: 10/31/2013
    Requires: PDF Reader
    Access conditions: Item is within a limited-access website
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