Ferns of Viçosa, Minas Gerais State, Brazil: Polypodiaceae (Polypodiales, Filicopsida, Tracheophyta)

Silva, Andreza Gonçalves da; Schwartsburd, Pedro Bond

doi:10.1590/2236-8906-95/2016

Cited by 6 publications

(7 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…After drying in a forced air oven at 65°C for almost 72 hours, the samples were ground in a one mm sieve Willey mill and submitted to laboratory procedures to determine crude protein (CP) contents, according to AOAC (1990) , neutral detergent fiber (NDF), and acid detergent fiber (ADF), as reported by Van Soest and Robertson (1985), neutral detergent insoluble nitrogen (NDIN), acid detergent insoluble nitrogen (ADIN) according to the methodology developed by Van Soest (1965) with sulphuric acid, as described by Silva and Queiroz (2006) , and hemicellulose.…”

Section: Methodsmentioning

confidence: 99%

Gas Exchanges and Dehydration in Different Intensities of Conditioning in Tifton 85 Bermudagrass: Nutritional Value during Hay Storage

Pasqualotto

Neres

Guimarães

et al. 2015

Asian Australas. J. Anim. Sci

View full text Add to dashboard Cite

The present study aimed at evaluating the intensity of Tifton 85 conditioning using a mower conditioner with free-swinging flail fingers and storage times on dehydration curve, fungi presence, nutritional value and in vitro digestibility of Tifton 85 bermudagrass hay dry matter (DM). The dehydration curve was determined in the whole plant for ten times until the baling. The zero time corresponded to the plant before cutting, which occurred at 11:00 and the other collections were carried out at 8:00, 10:00, 14:00, and 16:00. The experimental design was randomised blocks with two intensities of conditioning (high and low) and ten sampling times, with five replications. The high and low intensities related to adjusting the deflector plate of the free iron fingers (8 and 18 cm). In order to determine gas exchanges during Tifton 85 bermudagrass dehydration, there were evaluations of mature leaves, which were placed in the upper middle third of each branch before the cutting, at every hour for 4 hours. A portable gas analyser was used by an infrared IRGA (6400xt). The analysed variables were photosynthesis (A), stomatal conductance (gs), internal CO2 concentration (Ci), transpiration (T), water use efficiency (WUE), and intrinsic water use efficiency (WUEi). In the second part of this study, the nutritional value of Tifton 85 hay was evaluated, so randomised blocks were designed in a split plot through time, with two treatments placed in the following plots: high and low intensity of cutting and five different time points as subplots: cutting (additional treatment), baling and after 30, 60, and 90 days of storage. Subsequently, fungi that were in green plants as well as hay were determined and samples were collected from the grass at the cutting period, during baling, and after 30, 60, and 90 days of storage. It was observed that Tifton 85 bermudagrass dehydration occurred within 49 hours, so this was considered the best time for drying hay. Gas exchanges were more intense before cutting, although after cutting they decreased until ceasing within 4 hours. The lowest values of acid detergent insoluble nitrogen were obtained with low conditioning intensity after 30 days of storage, 64.8 g/kg DM. The in vitro dry matter of Tifton 85 bermudagrass did not differ among the storage times or the conditioning intensities. There was no fungi present in the samples collected during the storage period up to 90 days after dehydration, with less than 30 colony forming units found on plate counting. The use of mower conditioners in different intensities of injury did not speed up the dehydration time of Tifton 85.

show abstract

Section: Methodsmentioning

confidence: 99%

Gas Exchanges and Dehydration in Different Intensities of Conditioning in Tifton 85 Bermudagrass: Nutritional Value during Hay Storage

Pasqualotto

Neres

Guimarães

et al. 2015

Asian Australas. J. Anim. Sci

View full text Add to dashboard Cite

show abstract

“…(16) Os dados referentes à distribuição geográfica dos táxons foram baseados nos trabalhos de Flora do Brasil 2020. (16)(17)(18)(19) As samambaias e licófitas epífitas foram classificadas quanto ao tipo de relação com o forófito em categorias ecológicas, conforme proposto por Benzing: (20) holoepífitos habituais (presentes principalmente no ambiente epifítico); facultativos (ocorrem em ambiente epifítico como terrestre ou rupícola); acidentais (preferencialmente terrestres); hemiepífitos secundários (germina no solo e, após estabelecimento do contato com o forófito, a porção basal do sistema radicial/ caulinar sofre degeneração).…”

Section: Delineamento Amostralunclassified

“…Distribuição: Brasil, nos seguintes estados: Minas Gerais, São Paulo, Rio de Janeiro, Paraná, Santa Catarina e Rio Grande do Sul. (17) Comentários: Para Silva e Schwartsburd (19) Campyloneurum austrobrasilianum forma juntamente com Campyloneurum centrobrasilianum Lellinger (que ocorre na região Centro-Oeste e Norte do Brasil) e com Campyloneurum angustifolium (Sw.) Fée (registrado em várias regiões do Brasil) o complexo Campiloneurum angustifolium, sendo que a principal diferença entre estas espécies são as características das escamas caulinares. Em C. austrobrasilianum as escamas do caule apresentam a base formada por duas aurículas assimétricas.…”

Section: Chave De Identificação Para As Espécies De Samambaias Epífitunclassified

“…Enquanto Campyloneurum Campyloneurum.....austrobrasilianum.....forma phyllitidis apresenta lâmina com 60-150 cm de comprimento, caule robusto (6-15 mm de largura), ápice da lâmina caudado ou acuminado e escamas do rizoma com ápice acuminado. (19,41) Os espécimes encontrados no Parque Municipal Guairacá estão de acordo com as medidas descritas acima para Campyloneurum nitidum.…”

Section: Chave De Identificação Para As Espécies De Samambaias Epífitunclassified

“…Distribuição: EUA, México, Guatemala, Honduras, El Salvador, Nicaraguá, Costa Rica, Panamá, Grandes e Pequenas Antilhas, Colômbia, Venezuela, Trinidad, Guiana, Suriname, Guiana Francesa, Equador, Peru, Bolívia, Argentina, Paraguai e Brasil, nos seguintes estados: Mato Grosso, Mato Grosso do Sul, Goiás, Minas Gerais, Rio de Janeiro, Espírito Santo, São Paulo, Paraná, Santa Catarina e Rio Grande do Sul. (17) Comentários: Silva e Schwartsburd (19) encontraram exemplares com número de pinas em número de 4-13 pares, enquanto neste estudo, o único exemplar encontrado apresenta apenas dois pares de pinas (possivelmente um exemplar jovem). Todas as demais características diagnósticas (acima descritas) estão de acordo com o descrito por estes autores.…”

Section: Figura 3 Funclassified

See 2 more Smart Citations

Samambaias epífitas em trilhas do Parque Guairacá, município de Paula Freitas, Paraná

Silva

Krupek

2020

Semin. Cienc. Biol. Saude

View full text Add to dashboard Cite

Os epífitos desempenham importantes funções ecológicas, e em particular as samambaias, mostram uma diversidade significativa em ambientes florestais, ocupando microambientes específicos e diversos. A diversidade de samambaias epifíticas no estado do Paraná ainda é relativamente pouco conhecida. A região de Paula Freitas, em particular, não apresenta estudos específicos para este grupo de plantas. Neste sentido, o presente estudo teve por finalidade avaliar a riqueza de espécies de samambaias epífitas em regiões de trilhas no Parque Municipal Guairacá em Paula Freitas, Paraná. Foram registradas 10 espécies distribuídas em oito gêneros e quatro famílias. A família Polypodiaceae foi a mais rica na área avaliada (oito espécies), reflexo das características morfoanatômicas comuns às espécies da família. Os resultados encontrados contribuem com o reconhecimento das características florísticas e ecológicas de samambaias epífitas ocorrentes no estado do Paraná

show abstract

Fern flora of Viçosa, Minas Gerais State, Brazil: Dennstaedtiaceae, Lindsaeaceae and Saccolomataceae

Pena

Schwartsburd

2023

Hoehnea

View full text Add to dashboard Cite

As part of an ongoing project treating the ferns and lycophytes from the region of Viçosa, Minas Gerais State, Brazil, we here present the taxonomic treatment of the early divergent lineages of the leptosporangiate ferns: the families Dennstaedtiaceae, Lindsaeaceae and Saccolomataceae. We have been sampling the remnant forest patches since 2012; we also fully reviewed the collection of herbarium VIC and other online collections: F, IAN, NY, PH, RB, U, UC, UPCB, US, and WTU. In the region of Viçosa, six taxa belonging to those families occur: Dennstaedtia cicutaria and Pteridium esculentum subsp. arachnoideum (Dennstaedtiaceae); Lindsaea lancea var. lancea, L. quadrangularis subsp. quadrangularis, and L. stricta var. stricta (Lindsaeaceae); and Saccoloma elegans (Saccolomataceae). Among these taxa, only L. quadrangularis subsp. quadrangularis and S. elegans are endemic to the Brazilian Atlantic Rainforest; the remaining are widespread in the Neotropics. We present keys, descriptions, illustrations, examined specimens, and comments.

show abstract

Ferns of Viçosa, Minas Gerais State, Brazil: Polypodiaceae (Polypodiales, Filicopsida, Tracheophyta)

Cited by 6 publications

References 20 publications

Gas Exchanges and Dehydration in Different Intensities of Conditioning in Tifton 85 Bermudagrass: Nutritional Value during Hay Storage

Gas Exchanges and Dehydration in Different Intensities of Conditioning in Tifton 85 Bermudagrass: Nutritional Value during Hay Storage

Samambaias epífitas em trilhas do Parque Guairacá, município de Paula Freitas, Paraná

Fern flora of Viçosa, Minas Gerais State, Brazil: Dennstaedtiaceae, Lindsaeaceae and Saccolomataceae

Contact Info

Product

Resources

About