Teores de alumínio, manganês, fósforo, potássio, cálcio e magnésio em sessenta variedades de trigo e sua relação com o "crestamento"

Aluminum, manganese, prosphorus, potassium, calcium and magnesium content op sixty wheat varieties and its relation with "burning"

NOTA

Teores de alumínio, manganês, fósforo, potássio, cálcio e magnésio em sessenta variedades de trigo e sua relação com o "crestamento"¹

Aluminum, manganese, prosphorus, potassium, calcium and magnesium content op sixty wheat varieties and its relation with "burning"

J. Romano Gallo²; Rútter Hiroce²; Ondino C. Bataglia²; Mílton Alcover

SUMMARY

An abnormal condition of wheat (Triticum sativumL.) known as "burning" occurs frequently in acid soils with high aluminum content, and it has been suggested to be due to toxic effect of aluminum.

Aluminum content of sixty wheat varieties grown in a Ortho Dark-Red Latosol favorable to "burning" expression, at Capão Bonito Expt. Sta. was determined by Aluminon method. Simultaneously, contents of Ca, Mg, and Mn by atomic absorption spectrophotometry, as well as P and K by the process described by Lott et al., were also determined.

Despite high coefficient of variation, is was noticed that Al content was higher in plants affected by "burning", whereas Ca, Mg and possibly P and K had opposite behavior. Mn content did not vary.

The data reinforce the idea that toxic effect of Al might be the cause of "burning" of wheat.

Texto completo disponível apenas em PDF.

Full text available only in PDF format.

Recebido para publicação ein 13 de outubro de 1971.

1

Trabalho apresentado no XIII Congresso Brasileiro de Ciência do Solo, realizado em Vitória, Estado do Espírito Santo, de 12 a 22 de julho de 1971.

2

Com bolsa de suplementação do CNPq.

Datas de Publicação

• Publicação nesta coleção
  17 Mar 2009
• Data do Fascículo
  1972