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• Autor(a) principal: Silva, Cristiane Soares Pereira da
• Data de Publicação: 2011
• Outros Autores: Santos, Mirley Luciene dos
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Biotemas (Online)
• Texto Completo: https://periodicos.ufsc.br/index.php/biotemas/article/view/2175-7925.2008v21n1p29

Post-fi re phenological behavior and breeding biology of the Spiranthera odoratissima A. St.-Hil. (Rutaceae). The phenological behavior of species in response to cerrado stricken by fi re is little known. A phenological and reproductive biological study of Spiranthera odoratissima was carried out in an anthropized area of cerrado sensu stricto affected by fi re in Goiânia County, Goiás, Brazil. Phenolocial observations indicated that the indivi- duals bloomed in synchrony three months after the fi re. The phenological rhythms were associated with the seasonal pluviometric effects, a chara- cteristic pattern of shrublet species of the cerrado. The fl owers are white with a sweet odor and are grouped in panicle infl orescences. The blos- soming occurs during dusk and begins at around 16h. It offers pollen and nectar to its visitors. The species produces 32.8?l (± 3.4) of nectar with an average concentration of 16.4% (± 0.43) in equivalents of sucrose. The pollination system (phalenophily) was proposed based on an analysis of the fl ower’s characteristics. Observed visitors were bees (Apis to be merely resource thieves. It was observed that Trigona spinipes Fabr. can act as a secondary pollinator during the pilling of pollen. The results of manual pollination and the incompatibility index (ISI) indicate that the species is xenogamous and self-compatible.