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	Provedor de dados Rev. Bras. Ciênc. Solo (2) Autor Silva,Ivo Ribeiro da (2) Smyth,Thomas Jot (2) Carter Júnior,Thomas E. (1) Corrêa,Tarcísio Fernando Côrtes (1) Ferrufino,Armando (1) Gebrim,Fabrício de Oliveira (1) Israel,Daniel W. (1) Novais,Roberto Ferreira (1) Nunes,Flancer Novais (1) Sanzonowicz,Cláudio (1) Silva,Eulene Francisco da (1) Mais... Palavra-chave Cation amelioration (2) Soil acidity (2) Aluminum toxicity (1) Ca:Mg ratio (1) Heavy metals (1) Root stress (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2008 (1) 2005 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Interactions between magnesium, calcium, and aluminum on soybean root elongation Rev. Bras. Ciênc. Solo Silva,Ivo Ribeiro da; Ferrufino,Armando; Sanzonowicz,Cláudio; Smyth,Thomas Jot; Israel,Daniel W.; Carter Júnior,Thomas E.. Alleviation of Al rhizotoxicity by Ca and Mg can differ among species and genotypes. Root elongation of soybean [Glycine max (L.) Merr.] line N93-S-179 and cvs. Young and Ransom exposed to varying concentrations of Al, Ca and Mg were compared in two experiments using a vertically split root system. Roots extending from a surface compartment with limed soil grew for 12 days into a subsurface compartment with nutrient solution treatments maintained at pH 4.6 with either 0 or 15 µmol L-1 Al. Calcium and Mg concentrations in treatments ranging from 0 to 20 mmol L-1. Although an adequate supply of Mg was provided in the surface soil compartment for soybean top growth, an inclusion of Mg was necessary in the subsurface solutions to promote root elongation in... Tipo: Info:eu-repo/semantics/article Palavras-chave: Cation amelioration; Aluminum toxicity; Root stress; Soil acidity. Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832005000500010 Protective effect of divalent cations against aluminum toxicity in soybean Rev. Bras. Ciênc. Solo Silva,Ivo Ribeiro da; Corrêa,Tarcísio Fernando Côrtes; Novais,Roberto Ferreira; Gebrim,Fabrício de Oliveira; Nunes,Flancer Novais; Silva,Eulene Francisco da; Smyth,Thomas Jot. A large proportion of soybean fields in Brazil are currently cultivated in the Cerrado region, where the area planted with this crop is growing considerably every year. Soybean cultivation in acid soils is also increasing worldwide. Since the levels of toxic aluminum (Al) in these acid soils is usually high it is important to understand how cations can reduce Al rhizotoxicity in soybean. In the present study we evaluated the ameliorative effect of nine divalent cations (Ca, Mg, Mn, Sr, Sn, Cu, Zn, Co and Ba) in solution culture on Al rhizotoxicity in soybean. The growth benefit of Ca and Mg to plants in an acid Inceptisol was also evaluated. In this experiment soil exchangeable Ca:Mg ratios were adjusted to reach 10 and 60 % base saturation, controlled by... Tipo: Info:eu-repo/semantics/article Palavras-chave: Heavy metals; Cation amelioration; Soil acidity; Ca:Mg ratio. Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832008000500027 Registros recuperados: 2 Primeira ... 1 ... Última

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