O gênero Senna (Leguminosae-Caesalpinioideae) no município de Caetité, Bahia, Brasil

Santos, Tamara Teixeira dos; Oliveira, Ana Carla da Silva; Queiroz, Rubens Teixeira de; Silva, Juliana Santos

doi:10.1590/2175-7860202071002

Cited by 7 publications

(2 citation statements)

References 8 publications

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“…However, it is also possible recognize four portion in Espinhaço Range, based on local geology: Espinhaço Meridional, Serra do Cabral, Espinhaço Septentrional, and Chapada Diamantina (Chemale Jr et al 2011). Nevertheless, we found that some studies carried out in Espinhaço Baiano do not mention Espinhaço Range in the "topic field"; these studies were made in Chapada Diamantina (see Torres et al 2003;Pataro et al 2017) and Espinhaço Setentrional (see Azevedo et al 2015;Ferreira et al 2019;Santos et al 2020).…”

Section: The Espinhaço Rangementioning

confidence: 70%

What is being published on floristics? an overview of floristic studies carried out in the Espinhaço Range

2023

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The campo rupestre in the Espinhaço Range is subject of many floristic studies due to its high rates of species diversity and endemism. These studies are made up of critical, easily accessible data about local richness and biodiversity, which are essential for subsidizing new studies in the fields of conservation, ecology, and systematics. This study describes the results of a survey of floristic studies carried out in the Espinhaço Range and provides a checklist of the plant species listed in them. We found that 294 floristic studies were conducted in the Espinhaço Range, but they were focused only on a few areas. Likewise, we detected sampling gaps in some areas. The Floras studied provide information on 3,191 plants or 6,3% Brazilian flora, of which 2,879 are angiosperms, 247 bryophytes, and 65 lycophytes and ferns. Finally, we observed a lack of standardization regarding the habits reported for angiosperms shrubs and subshrubs which is more problematic for Espinhaço's flora because of its grasslands or shrublands vegetation. Thereby, we reaffirm the importance and need to encourage new floristic studies in the Espinhaço Range as a means to train new taxonomists and to provide new studies and projects.

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Section: The Espinhaço Rangementioning

confidence: 70%

What is being published on floristics? an overview of floristic studies carried out in the Espinhaço Range

2023

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“…H.S.Irwin & Barneby is a species of the family Fabaceae considered a Caatinga native plant (BFG, 2018). It is an annual herb, spontaneous, pioneer, with variable height from 0.5 to 0.8 m in function of the environment, and it spreads by seeds (Santos et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Ecophysiology germination of Senna uniflora seeds: species for recovery degraded areas

et al. 2020

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Studies on seeds ecophysiology are important to understanding of adaptation mechanisms and of species´ tolerance limits to natural conditions, because determine the potential of use in recovery plans of degraded areas. The aim of this study was to characterize and assess the effect of different temperatures, methods of dormancy overcoming and water and salt stresses on the germination of Senna uniflora. Imbibition curve and germination assay were conducted to assess the effect of temperature regimes (20 °C, 25 °C, 30 °C, 35 °C, 40 °C and 20-30 °C), of methods of overcoming dormancy (without scarification, mechanical scarification, chemical scarification and thermal scarification) and of water and salt stresses at the osmotic potentials (0.0; -0.2; -0.4 and -0.8 MPa) . The assessed variables were germination, germination speed index and average germination time. Methods of mechanical and chemical scarification for 5, 15 and 30 min were efficient to overcome physical dormancy, especially on constant temperature regimes of 25 °C and 30 °C and alternated 20-30 °C. Submitted to conditions of water and salt stresses, seeds germination was reduced with the increase of the osmotic potential, being -0.8 MPa the germination minimum limit, in addition, seeds were more sensitive to water stress than to salt stress.

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Senna spectabilis var. excelsa (Schrad.) H.S. Irwin & Barneby Fabaceae

Santos

Magalhães²,

Souza³

et al. 2022

Ethnobotany of Mountain Regions

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O gênero Senna (Leguminosae-Caesalpinioideae) no município de Caetité, Bahia, Brasil

Cited by 7 publications

References 8 publications

What is being published on floristics? an overview of floristic studies carried out in the Espinhaço Range

What is being published on floristics? an overview of floristic studies carried out in the Espinhaço Range

Ecophysiology germination of Senna uniflora seeds: species for recovery degraded areas

Senna spectabilis var. excelsa (Schrad.) H.S. Irwin & Barneby Fabaceae

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