Anatomia da madeira e casca de espinilho, &lt;i&gt;Acacia caven&lt;/i&gt; (Mol.) Mol.

Marchiori, José Newton Cardoso

doi:10.5902/19805098261

Cited by 4 publications

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“…Mol. é uma espécie nativa da região extra-tropical da América do Sul, sendo encontrada na região central do Chile, centro-leste da Argentina, Paraguai, Uruguai (Marchiori, 1992) e na região campestre do oeste do estado do Rio Grande do Sul, no Brasil (Rambo, 1966).…”

Section: Introductionunclassified

Superação de dormência e temperaturas para germinação de sementes de Acacia caven (Mol. ) Mol. (espinilho)

Escobar

Pedroso

Bonow

et al. 2010

Rev. bras. sementes

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Termos para indexação: Espécie florestal, temperatura, luz, plântulas, germinação. OVERCOMING DORMANCY AND TEMPERATURES FOR SEED GERMINATIONOF Acacia caven (Mol.) Mol.ABSTRACT -Acacia caven (Mol.) Mol. is a native species from southwest Rio Grande do Sul state, Brazil, and there is no effective methodology for analyzing its seeds. The objective of this study was to evaluate treatments for overcoming dormancy and temperatures for carrying out germination tests for A. cavens seed. Five treatments were used to overcome dormancy: control (T 1 ); immersion of seeds in water at 40 ºC for 24 h (T 2 ); immersion of seeds in 0.5% sodium hypochlorite for 24 h (T 3 ); mechanical scarification with water sandpaper nº. 80 (T 4 ) and incision in the region opposite to the micropyle (T 5 ). The germination tests were carried out at constant temperatures of 20 °C, 25 °C and 30 °C, under artificial light, on a paper substrate. The experimental design was completely randomized with four replications of 50 seeds. The data as percentages were transformed into arcsine and the means compared by Tukey's test at

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Section: Introductionunclassified