Aspectos botânicos e fenológicos da espécie Casearia Syvestris

Abstract

It is present in this Completion Course Work (CCW) two chapters in scientific articles man-ner, entitled: (I) Botanic overview of Casearia sylvestris species and (II) – Vegetative and reproductive phenology of Casearia sylvestris Seasonal Decidual Forest surroundings.; The 1st Chapter will approach scientific studies on Casearia sylvestris specie, thus developing an overview of main scientific publishes regarding to this topic at Brazil. This study aims to bring forward historical and morphological aspects, aside of contribute for the comprehension and discussion of 2nd chapter; The 2nd chapter will contemplate specifically the vegetative and reproductive phenology of Casearia sylvestris species, on the border of a fragment of the Sea-sonal Decidual Forest from Missões-RS region. The phonological characterization of Ca-searia sylvestris was developed through the Fournier method, on which is observed the repro-ductive phenophases (bud flowers, anthesis, unripe and ripe fruit) and vegetative (budding and fall leafs), during a period of the year, from August 2016 to September 2017. The data obtained on this period were correlated with abiotic factors, astronomical length of the day (photoperiod), air temperature and rainfall, which were collected at the UFFS meteorological center. The reproductive phenophases were annual seasonal type, the flower bud and the func-tional flower were significantly influenced by air temperature and the astronomical length shrinkage of the day. The fruits had an intensity edge on the period on which the temperature were increasing, being influenced by the astronomical length enlargement of the day and tem-perature. The vegetative phenophases occurred on practically all months of observation, ex-cept on July, month on which occurred an abrupt decrease of budding, possible related to the temperatures from this time of the year, when is winter in the region, besides on the other months the phenophase only alternated its intensity. It was possible to verify that the phe-nophase fall leafs intensity is associated with rainfall indexes, since it was attested that on the most rainy months the phenophase intensity suffers an elevation.