1987
DOI: 10.1590/s0006-87051987000200004
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Trigo: efeito de magnésio combinado com forças iônicas em solução nutritiva na tolerância ao alumínio

Abstract: Os cultivares BH-1146, IAC-17 e Siete Cerros foram estudados em soluções nutritivas contendo 10 mg/litro de Al3+, combinados com três concentrações de sais (um décimo, um quinto e a metade da concentração de sais da solução nutritiva completa) e cinco níveis de Mg (0; 9,6; 48; 96 e 192 mg/litro). A tolerância foi medida pela capacidade de as raízes primárias continuarem a crescer em soluções sem alumínio após permanência de 24, 48 e 72 horas em soluções de tratamento contendo determinada força iônica combinada… Show more

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“…This has been demonstrated for wheat with Ca, Mg, K, and Na (Camargo, 1985 and1987;Kinraide and Parker, 1987), for soybean with Ca (Alva et al, 1986a), and for corn with silicon (Si) ( Barcel6 et al, 1993). Such protection has been interpreted as a result of competition for absorption sites, or in the latter case, on the basis of removal of Al from the solution due to the formation of precipitates.…”
Section: Discussionmentioning
confidence: 96%
“…This has been demonstrated for wheat with Ca, Mg, K, and Na (Camargo, 1985 and1987;Kinraide and Parker, 1987), for soybean with Ca (Alva et al, 1986a), and for corn with silicon (Si) ( Barcel6 et al, 1993). Such protection has been interpreted as a result of competition for absorption sites, or in the latter case, on the basis of removal of Al from the solution due to the formation of precipitates.…”
Section: Discussionmentioning
confidence: 96%