Physiological response of cowpea seeds to salinity stress


Autoria(s): Dantas,Bárbara França; Ribeiro,Luciana de Sá; Aragão,Carlos Alberto
Data(s)

01/06/2005

Resumo

This work aimed to evoluate physiological response of cowpea (Vigna unguiculata L. Walp) seeds submitted to salt stress. Seeds of cultivars 'Epace-10'; 'Canapu' and 'Pitiúba' of cowpea, were submitted to germination test in germinator at 25(0)C, in "germitest" papers imbibed in distilled water or in 0, 10, 50, 100 and 200mol m-3 NaCl solutions. At the first and second counting of the germination test, normal seedlings were accounted, weighted and dried, obtaining data for vigor, total germination, fresh matter weight and dry matter weight. The seedlings hypocotyls, root and total length were measured total proteins content in cotyledons were obtained from germinating seeds. The presence of salt at concentrations higher than 50mol m-3 NaCl affect the germination, seedlings growth and cotyledons total protein synthesis of all cowpea cultivars. The seeds of cultivar pitiúba were is more tolerant to salinity, than the cultivars Canapu and Epace-10.

Formato

text/html

Identificador

http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-31222005000100018

Idioma(s)

en

Publicador

Associação Brasileira de Tecnologia de Sementes

Fonte

Revista Brasileira de Sementes v.27 n.1 2005

Palavras-Chave #Vigna unguiculata #sodium chloride #germination #vigor #protein
Tipo

journal article