| Registro completo |
| Provedor de dados: |
Braz. J. Plant Physiol.
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| País: |
Brazil
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| Título: |
Supplemental Ca2+ does not improve growth but it affects nutrient uptake in NaCl-stressed cowpea plants
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| Autores: |
Guimarães,Francisco Valderez Augusto
Lacerda,Claudivan Feitosa de
Marques,Elton Camelo
Abreu,Carlos Eduardo Braga de
Aquino,Boanerges Freire de
Prisco,José Tarquinio
Gomes-Filho,Enéas
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| Data: |
2012-01-01
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| Ano: |
2012
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| Palavras-chave: |
Calcium
Mineral nutrition
Salinity
Vigna unguiculata
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| Resumo: |
The growth and nutrient assimilation was evaluated in CaCl2- and CaSO4-supplemented cowpea plants subjected to salt stress (75 mM NaCl). The salinity significantly reduced the cowpea vegetative growth. The addition of CaCl2 in the growth medium did not significantly affect plant growth, while for the CaSO4, the beneficial effects of Ca2+ were moderate. Salinity increased the Na+, K+, Cl-, N and P content in the plants, however it decreased the content of Ca2+ and Mg2+. Increases in Ca2+ concentration in the nutrient solution caused decreases in the Na+ and Mg2+ contents and increases in Ca2+, K+, P, and Cl- contents. The supplemental Ca2+ may alleviate the Na+ toxicity and may improve nutritional and ionic balance in cowpea, but it cannot overcome the osmotic effects associated with the increased total salt concentration.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202012000100003
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| Editor: |
Brazilian Journal of Plant Physiology
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| Relação: |
10.1590/S1677-04202012000100003
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| Formato: |
text/html
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| Fonte: |
Brazilian Journal of Plant Physiology v.24 n.1 2012
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| Direitos: |
info:eu-repo/semantics/openAccess
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