2009
DOI: 10.1590/s1413-70542009000300013
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Fontes e níveis de salinidade na germinação de sementes de Crotalaria juncea L.

Abstract: RESUMOObjetivou-se avaliar o efeito dos sais cloreto de cálcio (CaCl 2 ), cloreto de sódio (NaCl) e cloreto de potássio (KCl) na germinação de Crotalaria juncea L. As sementes foram acondicionadas em caixas tipo gerbox, forradas com duas folhas de papel-filtro e umedecidas com as soluções-teste. Em cada tratamento foram utilizadas 200 sementes, dispostas em quatro repetições de 50 sementes. A indução do estresse salino foi realizada com soluções de NaCl, CaCl 2 e KCl com potenciais osmóticos de 0; -0,4; -0,8; … Show more

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Cited by 14 publications
(16 citation statements)
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“…Besides this, the authors concluded that the deleterious effects on osmotic potential were more severe in the following order, respectively: KCl, CaCl 2 and NaCl on germination; KCl, NaCl and CaCl 2 on initial growth; and NaCl, KCl and CaCl 2 on phytotoxicity. Botelho & Perez (2001), in a similar study to that of Nunes et al (2009), found the same results for horsebush (Peltophorum dubium), where the negative effects of reduced osmotic potential increased with higher concentrations of salts.…”
Section: Discussionsupporting
confidence: 57%
See 1 more Smart Citation
“…Besides this, the authors concluded that the deleterious effects on osmotic potential were more severe in the following order, respectively: KCl, CaCl 2 and NaCl on germination; KCl, NaCl and CaCl 2 on initial growth; and NaCl, KCl and CaCl 2 on phytotoxicity. Botelho & Perez (2001), in a similar study to that of Nunes et al (2009), found the same results for horsebush (Peltophorum dubium), where the negative effects of reduced osmotic potential increased with higher concentrations of salts.…”
Section: Discussionsupporting
confidence: 57%
“…Nunes et al (2009), evaluating the toxicity of KCl, NaCl and CaCl 2 on the germination and growth of Crotalaria juncea, found that the increased concentration of those salts, expressed by the reduction of the osmotic potential, impaired germination and initial growth. Besides this, the authors concluded that the deleterious effects on osmotic potential were more severe in the following order, respectively: KCl, CaCl 2 and NaCl on germination; KCl, NaCl and CaCl 2 on initial growth; and NaCl, KCl and CaCl 2 on phytotoxicity.…”
Section: Discussionmentioning
confidence: 99%
“…did not show a high threshold of tolerance to salt stress and can be considered a glycophyte with moderate tolerance to NaCl (Fanti and Perez, 2004). A reduction in the percentage of germination attributable to increased water salinity was also observed in various legumes (Deminicis et al, 2007;Nunes et al, 2009). Tolerances to osmotic and ionic stress induced by water restriction and salt excess, respectively, are complex and often interrelated, involving the interaction of multiple factors (Verslues et al, 2006).…”
Section: Resultsmentioning
confidence: 91%
“…Among the treatments, the phytotoxicity sources induced different effects regarding to the size and appearance of sunn hemp seedlings (Nunes et al, 2009). The same effect was observed, regarding to the appearance of roots of L. lycopersicum.…”
Section: Resultsmentioning
confidence: 99%