2007
DOI: 10.1590/s0101-31222007000100006
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Physiological quality of barley seeds submitted to saline stress

Abstract: The objective of the experiments was to determine the influence of the effects of different salt levels (zero, 15, 30, 45 and 60mM NaCl) on the physiological quality of seeds of two barley cultivars (BRS 195 and AF 98067). Assays were conducted to evaluate salt stress on germination and vigor. The germination and germination rate of the barley seeds decreased as salt levels increased, reducing the seed viability and vigor. The salinity affected the membrane integrity, mainly in AF 98067 that showed more sensit… Show more

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Cited by 18 publications
(15 citation statements)
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References 6 publications
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“…1D, 1E and 1F). Similar results were obtained in a study involving barley (Hordeum vulgare L.) seeds, in which Silva et al (2007) described a reduction in the FGC caused by the addition of salt to the irrigation water. Dantas et al (2007) considered this an efficient method for the prediction of the vigor and the differentiation of the salt tolerance of cultivars of bean (Phaseolus vulgaris L.).…”
Section: Resultssupporting
confidence: 86%
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“…1D, 1E and 1F). Similar results were obtained in a study involving barley (Hordeum vulgare L.) seeds, in which Silva et al (2007) described a reduction in the FGC caused by the addition of salt to the irrigation water. Dantas et al (2007) considered this an efficient method for the prediction of the vigor and the differentiation of the salt tolerance of cultivars of bean (Phaseolus vulgaris L.).…”
Section: Resultssupporting
confidence: 86%
“…The problems caused by salt stress, as seen in the dry mass analysis, indicate that salinity decreases biomass production, in addition to altering the partition of photoassimilates between the different plant parts (Silva et al 2007). This differential partition can contribute to the adaptation of plants to salt stress.…”
Section: Resultsmentioning
confidence: 99%
“…A absorção de água é prejudicada pelo excesso de sais solúveis reduzindo o potencial hídrico do solo (Bewley e Black, 1985). A redução na absorção de água pelas sementes atua reduzindo a velocidade dos processos fisiológicos básicos (Tabelas 1) e bioquímicos e, com isso as plântulas resultantes desse meio, com umidade reduzida, possuem menor desenvolvimento, (Silva et al, 2007).…”
Section: Tabela 1 Porcentagem Média De Germinação (G%) Primeira Conunclassified
“…Está bem estabelecido que a salinidade reduz o crescimento e muitos processos fisiológicos como consequência de alterações metabólicas induzidas pelo sal (Silva et al, 2007). A síntese de ácidos nucléicos e proteínas solúveis são processos metabólicos ativados durante o crescimento, e a capacidade do 24-epibrassinolídeo em reverter os efeitos da salinidade e, em alguns casos, proporcionar incremento relevante em alguns processos fisiológicos, refletindo em altos níveis desses metabólitos (Anuradha e Rao, 2001).…”
Section: Tabela 2 Condutividade Elétrica Com Três E 24 Horas De Embunclassified
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