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Dormancy breaking in macaw palm [Acrocomia aculeata (Jacq.) Loddiges ex Mart.] seeds doi: 10.4025/actasciagron.v36i1.13220 Agronomy
Neto, Aurélio Rúbio; Cooperativa Mista dos Produtores Rurais do Sudoeste de Goiás; Silva, Fabiano Guimarães; Instituto Federal Goiano; Sales, Juliana de Fátima; Instituto Federal Goiano; Reis, Edésio Fialho dos; Universidade Federal de Goiás; Silva, Laila Queiroz; Instituto Federal Goiano; Campos, Rafael Cândido; Instituto Federal Goiano.
This study was performed to improve the speed of and standardize the process for the germination of macaw palm seeds. The effect of mechanical scarification (removal of the tegument in the hilum region), thermal scarification (imbibition of seeds in water at approximately 100°C for two or four minutes) and chemical scarification (98% sulfuric acid treatment for two or four minutes) were compared to a control (no scarification) in both a germination chamber and a greenhouse, representing trials one and two, respectively. The effect of imbibition speed (fast or slow) and different concentrations of gibberellic acid (0, 100 or 200 mg L-1) on the germination percentage and index of germination velocity were evaluated during a third trial. Mechanical...
Tipo: Info:eu-repo/semantics/article Palavras-chave: 5.01.03.00-8 Arecaceae; Germination; Gibberellic acid 5.01.03.04-0.
Ano: 2014 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/13220
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Effect of drying and soaking fruits and seeds on germination of macaw palm (Acrocomia aculeata [Jacq.] Loddiges ex MART.) - doi: 10.4025/actasciagron.v34i2.11752 Agronomy
Rubio Neto, Aurélio; Universidade Federal de Goiás; Silva, Fabiano Guimarães; Instituto Federal Goiano/Campus Rio Verde; Sales, Juliana de Fátima; Instituto Federal Goiano; Reis, Edésio Fialho dos; Universidade Federal de Goiás; Silva, Marcus Vinícius Vieira da; Instituto Federal Goiano; Souza, Apolyana Lorraine; Instituto Federal Goiano.
This study evaluated mechanisms of the dehydration and rehydration of fruits and seeds on the resulting embryo viability of the macaw palm, Acrocomia aculeata (Jacq.) Loddiges ex Mart. Dehydration was performed in a forced-air oven at 37 ± 2°C for 0, 3, 6, 9, 12 or 15 days, and after these periods, the embryo viability was evaluated by the tetrazolium test. The effect of hydration on the germination percentage and velocity index was evaluated by the imbibition of seeds with distilled water in a germinator at 30 ± 2°C for 0, 2, 4, 6, 8 or 10 days. The seeds were then treated with fungicide and maintained in a Mangelsdorf germinator at 30 ± 2°C. Drying caused a progressive water loss in the fruits and facilitated the extraction of the seeds. Fruits subjected...
Tipo: Experimento de laboratório Palavras-chave: 5.01.03.03-2 germination; Tetrazolium; Drying tolerance Produção e Beneficiamento de Sementes.
Ano: 2012 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/11752
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