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Registro Completo |
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
12/07/1996 |
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Data da última atualização: |
12/07/1996 |
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Autoria: |
BROWN, J. C.; LUNT, O. R.; HOLMES, R. S.; TIFFIN, L. O. |
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Afiliação: |
United States Department of Agriculture. |
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Título: |
The bicarbonate ion as an indirect cause of iron chlorosis. |
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Ano de publicação: |
1959 |
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Fonte/Imprenta: |
Soil Science, v.88, p.260-266, 1959. |
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Idioma: |
Inglês |
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Conteúdo: |
In a split-medium experiment, in which the roots of chIorosis-susceptibIe PI soybeans were permitted to grow through a soil mix and an air gap into a soIution cuIture containing no Fe or P, the addition of 10 me./I. of NaHCO3 to the soIution cuIture did not induce chlorosis or reduce the absorption of iron from the soil mixture. The respiration of roots from these treatments was, likewise, not reduced. In contrast, the PI soybeans grown in a complete soIution cuIture containing 5 me./I. NaHCO3 deveIoped severe chIorosis, and root respiration decreased as chIorosis deveIoped. Bicarbonate treatments maintained approximateIy twice as much phosphorus in soIution as comparabIe treatments containing no HCO3-. The incidence of iron chIorosis in PI soybeans was reIated more to the phosphorus concentration than to the HCO3- concentration in soIution cuIture. The affect of HCO3- on the development of iron chIorosis is believed to be indirect rather than direct.
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Palavras-Chave: |
Bicarbonate ion; Growth; Iron chlorosis; Soybena. |
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Thesagro: |
Bicarbonato; Crescimento; Ferro; Soja. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01580naa a2200253 a 4500
001 1789359
005 1996-07-12
008 1959 bl --- 0-- u #d
100 1 $aBROWN, J. C.
245 $aThe bicarbonate ion as an indirect cause of iron chlorosis.
260 $c1959
520 $aIn a split-medium experiment, in which the roots of chIorosis-susceptibIe PI soybeans were permitted to grow through a soil mix and an air gap into a soIution cuIture containing no Fe or P, the addition of 10 me./I. of NaHCO3 to the soIution cuIture did not induce chlorosis or reduce the absorption of iron from the soil mixture. The respiration of roots from these treatments was, likewise, not reduced. In contrast, the PI soybeans grown in a complete soIution cuIture containing 5 me./I. NaHCO3 deveIoped severe chIorosis, and root respiration decreased as chIorosis deveIoped. Bicarbonate treatments maintained approximateIy twice as much phosphorus in soIution as comparabIe treatments containing no HCO3-. The incidence of iron chIorosis in PI soybeans was reIated more to the phosphorus concentration than to the HCO3- concentration in soIution cuIture. The affect of HCO3- on the development of iron chIorosis is believed to be indirect rather than direct.
650 $aBicarbonato
650 $aCrescimento
650 $aFerro
650 $aSoja
653 $aBicarbonate ion
653 $aGrowth
653 $aIron chlorosis
653 $aSoybena
700 1 $aLUNT, O. R.
700 1 $aHOLMES, R. S.
700 1 $aTIFFIN, L. O.
773 $tSoil Science$gv.88, p.260-266, 1959.
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Registro original: |
Embrapa Pantanal (CPAP) |
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