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| Dutra,Alek Sandro; Medeiros Filho,Sebastião; Teófilo,Elizita Maria; Diniz,Fábio Oliveira. |
| Senna siamea é uma espécie arbórea originária da Tailândia, que se adaptou às condições do nordeste brasileiro, que vem sendo utilizada na arborização, cerca viva e produção de madeira. A pesquisa foi conduzida em dois experimentos com o objetivo de identificar métodos para superação da dormência e verificar os efeitos da temperatura e luz na germinação de suas sementes. No primeiro, as sementes foram submetidas aos tratamentos: calor úmido, imersão em ácido sulfúrico e água quente, escarificação mecânica, visando à superação da dormência além da testemunha. Foram determinados os percentuais de germinação, de sementes duras e mortas. No segundo experimento, após tratamento com ácido sulfúrico, as sementes foram semeadas em papel-filtro e colocada para... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Espécie florestal; Luz; Temperatura; Dormência. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-31222007000100022 |
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| Diniz,Fábio Oliveira; Novembre,Ana Dionisia da Luz Coelho. |
| ABSTRACT It is important to understand the seed maturation process to determine the time point at which the seeds achieve optimum quality and the ideal time for harvest. This study aimed to study the maturation of Physalis peruviana L. seeds, based on flowering time and age of the fruit. This study was conducted from March to October of 2016 and 2017, in the city of Piracicaba, São Paulo. The plants were cultivated in four blocks using four stems, with spacing of 1.0 m between the plants and of 2.5 m between the rows. As experimental treatments, two flowering time points were defined: 55 and 105 days after transplanting (DAT); in each period, the flowers were marked at the anthesis and the respective fruits and seeds were evaluated at 45, 60, 75, and 90... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cape gooseberry; Physiological maturity; Germination; Anthesis; Harvest. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902019000300447 |
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| Diniz,Fábio Oliveira; Chamma,Larissa; Novembre,Ana Dionisia da Luz Coelho. |
| ABSTRACT Optimum seed germination conditions are crucial for the complete utilization of the potential of a crop. Hence, the objective of this study was to evaluate the effects of light, temperature, and substrate on the germination of Physalis peruviana L. seeds. Three seed lots were used, which were first assessed over a temperature gradient of nine intervals (from 15 ºC to 35 ºC) and alternating temperatures of 20-30 ºC and 15-35 ºC under a photoperiod of 8h light. Subsequently, germination was studied according to the substrate used, i.e., paper (on paper), sand (between sand), and vermiculite (between vermiculite), under 8h light per day at a constant temperature of 25 ºC or alternating temperatures (20-30 ºC). Evaluations were conducted daily until... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cape gooseberry; Seedlings; Thermo-gradient table; Seed analyze. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902020000100406 |
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