Data/hora: 09/06/2024 01:40:46

Provedor de dados: | 61
País: | Brazil
Título: | Supplemental Ca2+ does not improve growth but it affects nutrient uptake in NaCl-stressed cowpea plants
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.
Data: | 2012-01-01
Ano: | 2012
Palavras-chave: | Calcium; Mineral nutrition; Salinity; Vigna unguiculata.
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.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202012000100003
Editor: | Brazilian Journal of Plant Physiology
Relação: | 10.1590/S1677-04202012000100003
Formato: | text/html
Fonte: | Brazilian Journal of Plant Physiology  v.24 n.1 2012
Fonte: | info:eu-repo/semantics/openAccess