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| 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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| 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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| Sales, Juliana de Fátima; Instituto Federal Goiano; Pinto, José Eduardo Brasil Pereira; Universidade Federal de Lavras; Oliveira, João Almir de; Universidade Federal de Lavras; Botrel, Priscila Pereira; Universidade Federal de Lavras; Silva, Fabiano Guimarães; Instituto Federal Goiano; Corrêa, Ricardo Monteiro; Instituto Federal Minas Gerais. |
| This study evaluated the effect of light, temperature, physiologic stage at harvest and length of time on the germination of Hyptis marrubioides seeds. Two trials were conducted. The first experiment was performed immediately after the seed harvest and consisted of a 2 x 3 x 3 factorial design with 2 environmental conditions (light and dark), 3 temperatures (20, 30 and 20/30ºC) and 3 seed harvest times (green colored seeds, light brown seeds and dark brown seeds). The second experiment was conducted in the presence of light at a temperature of 30ºC and consisted of a 4 x 3 factorial design, with 4 storage times (0, 6, 12 and 18 months) and the 3 three harvest physiologic stages used in the previous experiment. Both of the experiments were conducted in... |
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Palavras-chave: 5.01.03.00-8 medicinal plant; Viability; Lamiaceae Fitotecnia medicinal plant; Viability; Lamiaceae. |
| Ano: 2011 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/4611 |
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| Silva, Marcus Vinícius Vieira da; Instituto Federal Goiano; Sales, Juliana de Fátima; Instituto Federal Goiano; Silva, Fabiano Guimarães; Instituto Federal Goiano; Neto, Aurélio Rubio; Instituto Federal Goiano; Alberto, Paula Sperotto; Instituto Federal Goiano; Pereira, Flávia Dionísio; IFGoiano - Campus Rio Verde. |
| The objective of this study was to evaluate the physiological quality of babassu (Orbignya phalerata Mart.) embryos as a function of desiccation. The fruits were placed in a convection oven at 37±2°C for 0, 3, 6, 9, or 12 days. After these periods, the moisture contents of the fruits and seeds were determined. A reduction in the water content occurred more rapidly in the fruits than in the seeds. The decrease in seed moisture content from 12.59% (on the basis of fresh weight) to 4.56% did not affect the percentage of germinated zygotic embryos; however, we did observe a decline in the vigor as the seed moisture content decreased. Embryos with a 4.56% moisture content developed into seedlings of shorter lengths after 30, 60, and 90 days of in vitro growth.... |
| Tipo: Pesquisa Empírica |
Palavras-chave: 5.01.03.00-8 Arecaceae; Desiccation tolerance; Tissue culture; Fitotecnia. |
| Ano: 2012 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/13429 |
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