Ana Feliciano
Universidade Federal Rural de Pernambuco, Ciência Florestal, Faculty Member
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O objetivo deste trabalho foi descrever os caracteres morfológicos e biométricos das sementes e plântulas de Parkia pendula (Willd.) Benth. Ex Walp. O estudo foi desenvolvido no Laboratório de Análise de Sementes Florestais e no Viveiro... more
O objetivo deste trabalho foi descrever os caracteres morfológicos e biométricos das sementes e plântulas de Parkia pendula (Willd.) Benth. Ex Walp. O estudo foi desenvolvido no Laboratório de Análise de Sementes Florestais e no Viveiro Florestal do Departamento de Ciência Florestal da Universidade Federal Rural de Pernambuco. Para a biometria foram utilizadas 100 sementes. Sendo medidos, com auxílio de um paquímetro o comprimento, a largura e a espessura, onde as medições foram expressas em milímetro. Observou-se, diariamente, o desenvolvimento das plântulas e mudas, descrevendo todas as características da morfologia externa, como características da radícula, hipocótilo, cotilédones, epicótilo, tipo de germinação, entre outras informações importantes. As sementes de Parkia pendula, apresentaram comprimento médio de 10,15 mm; largura e espessura média de 5,45 e 3,20 mm, respectivamente; a germinação é do tipo epígea fanerocotiledonar. Os caracteres morfológicos mostraram-se confiáve...
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This work aimed to characterize the biometry of fruits and seeds of Artocarpus heterophyllus Lam. and to verify its influence on germination. The fruits were collected from the matrices trees in the Jardim Botânico do Recife (JBR),... more
This work aimed to characterize the biometry of fruits and seeds of Artocarpus heterophyllus Lam. and to verify its influence on germination. The fruits were collected from the matrices trees in the Jardim Botânico do Recife (JBR), Pernambuco. From 10 pathogen-free A. heterophyllus matrices, 50 fruits (multiple fruits, which in the research were considered as single fruit) and 500 seeds were collected, being measured length, width and thickness, using a tape measure (for fruits ) and digital caliper (precision 0.001 mm) for the seeds, as well as weighing on a precision scale. The seeds were classified by size: Small (≤ 2.5 cm), medium (2.6 to 3 cm) and large (≥ 3.1 cm). The germination test was conducted in a greenhouse of the JBR, with a 50% shading screen. The container used was a 50 x 25 x 5 cm polypropylene tray with holes at the bottom to provide drainage. The obtained results allow inferring that the seed size did not influence the vigor on A. heterophyllus germination in a gr...
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The process of disordered urbanization was reduced drastically as the natural areas, which formerly was necessary, the current times of occurrence of empty spaces, which was not different in the City of Recife, but not the District of... more
The process of disordered urbanization was reduced drastically as the natural areas, which formerly was necessary, the current times of occurrence of empty spaces, which was not different in the City of Recife, but not the District of Dois Irmãos. With the purpose of protecting a fragment of the Atlantic Forest and reducing the pressure on the environment, a state conservation unit was created called Dois Irmãos State Park (PEDI). In this perspective, the study had an objective of surveying the species of shrubs and the analysis of the phytosanitary present in the arborization of the zoological sector of the State Park of Dois Irmãos. With the objective of subsidizing the promotion and development of activities related to environmental education. The survey of plants was made from new census models. In this inventory 369 arboreal individuals were present at the PEDI Zoo, belonging to 25 botanical families, 48 genera and 60 species. Among these are the species, two were of gender l...
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Este estudo teve como objetivo levantar a composicao floristica da vegetacao da ilha fluvial do Estreito, no rio Sao Francisco, regiao semiarida de Pernambuco. A area de estudo foi a Estacao Experimental do IPA em Belem de Sao Francisco,... more
Este estudo teve como objetivo levantar a composicao floristica da vegetacao da ilha fluvial do Estreito, no rio Sao Francisco, regiao semiarida de Pernambuco. A area de estudo foi a Estacao Experimental do IPA em Belem de Sao Francisco, que apresenta vegetacao alterada com povoamentos adensados de algaroba (Prosopis juliflora (sw.) DC.). O levantamento preliminar da flora foi realizado por meio de caminhamento, ao longo da area da ilha. As plantas coletadas foram identificadas no Herbario IPA – Dardano de Andrade Lima. Foram registradas 32 especies, pertencentes a 31 generos distribuidos em 19 familias. As familias com maior riqueza foram Fabaceae com sete especies e Capparaceae com quatro especies. A riqueza de especies arbustivas-arboreas observada e baixa quando comparada com matas ciliares conservadas.
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O presente estudo objetivou avaliar a intensidade do ataque de pragas em especies nativas implantadas em tres diferentes tipos de solos na caatinga. O estudo foi realizado em area experimental do Projeto Biomas - Caatinga, localizada na... more
O presente estudo objetivou avaliar a intensidade do ataque de pragas em especies nativas implantadas em tres diferentes tipos de solos na caatinga. O estudo foi realizado em area experimental do Projeto Biomas - Caatinga, localizada na Fazenda Triunfo no municipio de Ibaretama, CE. Nessa area foi realizado o plantio de seis especies nativas em espacamento de 2m x 2m em tres tipos de solos (planossolo haplico, vertissolo hidromofico e neossolo fluvico). As plantas atacadas por pragas foram classificadas por meio de notas de danos da seguinte forma: 1 = ataque leve ( 50%). As pragas encontradas causando danos e avaliadas quanto a sua intensidade de ataque foram tripes (Frankliniella sp) em coronha (Vachellia farnesiana (L.) Wight & Arn.) e o pulgao (Aphis gossypii) em mutamba (Guazuma ulmifolia Lam.). A coronha apresentou-se com maior percentagem de ataque por tripes na area sob neossolo e em menor percentagem no vertissolo, com menor intensidade de danos tambem nas mudas deste. O pulgao (Aphis gossypii) apresentou alta percentagem de ataque nas mudas de mutamba, independente do tipo de solo, porem com leve intensidade de ataque.
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Este trabalho objetivou avaliar o efeito de diferentes metodos de escarificacao na germinacao de sementes de Harpalyce brasiliana . Os tratamentos testados foram: T1 = Testemunha (sem escarificacao), T2 = Lixa no100, T3 = Agua fervente... more
Este trabalho objetivou avaliar o efeito de diferentes metodos de escarificacao na germinacao de sementes de Harpalyce brasiliana . Os tratamentos testados foram: T1 = Testemunha (sem escarificacao), T2 = Lixa no100, T3 = Agua fervente ate resfriamento, T4 = Agua fria por 24 horas, T5 = Acido Sulfurico por 5 minutos, T6 = Acido Sulfurico por 20 minutos, T7 = Acido Sulfurico por 40 minutos, T8 = Aquecimento em estufa a 65oC por duas horas. Foi utilizado delineamento inteiramente casualizado, com 5 repeticoes e 20 sementes por repeticao, totalizando 100 sementes por tratamento. As contagens de sementes germinadas foram realizadas diariamente durante 30 dias. Na comparacao de medias, utilizou-se o teste de Tukey a 5% de probabilidade. De acordo com os resultados os tratamentos mais eficientes foram os que utilizaram acido sulfurico, promovendo a germinacao de ate 83% das sementes, diferindo estatisticamente dos demais. O tratamento com agua fria por 24h foi o menos eficiente, com apenas 2%, promovendo germinacao abaixo da testemunha (8%). As escarificacoes em acido sulfurico nos tempos de 5, 20 e 40 minutos sao os metodos mais eficientes, entre os testados, para a superacao da dormencia de Harpalyce brasiliana.
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O objetivo do estudo foi descrever a morfologia da germinação de plântulas normais de Senna cana (Nees & Mart.) H. S. Irwin & Barneby e, descrever as plântulas anormais. A coleta das sementes foi realizada no Parque Nacional Vale do... more
O objetivo do estudo foi descrever a morfologia da germinação de plântulas normais de Senna cana (Nees & Mart.) H. S. Irwin & Barneby e, descrever as plântulas anormais. A coleta das sementes foi realizada no Parque Nacional Vale do Catimbau, Buíque - PE. As sementes foram escarificadas, desinfestadas e lavadas com água deionizada. Foram utilizadas quatro repetições de 25 sementes, semeadas sobre papel toalha e postas para germinar em B.O.D a 20-30ºC. A emissão da radícula ocorreu no terceiro dia após semeadura, coloração bege amarelada, tenra, cilíndrica, com pelos radiculares. Do 7º ao 11º dia, alongamento do hipocótilo e surgimento das raízes secundárias. O hipocótilo cilíndrico, herbáceo, coloração amarela, com tricomas curtos. No 17º dia, o surgimento do epicótilo pubescente. Aos 45 dias, o sistema radicular pivotante, com comprimento de 3,0 a 3,5 cm de coloração marrom enegrecida. O hipocótilo de 2,5 a 3,0 cm, cilíndrico, reto ou tortuoso, verde-claro no ápice e amarelado na b...
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Aims: To evaluate the potential of artificial bird perch for recovering areas on the Brazilian semiarid through seed dispersion and the establishment of regeneration. Study Design: We tested the treatments: PC= perches in area with... more
Aims: To evaluate the potential of artificial bird perch for recovering areas on the Brazilian semiarid through seed dispersion and the establishment of regeneration. Study Design: We tested the treatments: PC= perches in area with preserved surroundings; CC = absence o perches in area with preserved surroundings (Control 1); PP= disturbed area with perches and CP= disturbed area without perches (Control 2). The experiment has a complete randomized design with four replications. Place and Duration of Study: The study was performed in the municipalities of Ibaretama and Quixaba, State of Ceará, Brazil. We used one perturbed (Area 1) and one conserved area (Area 2) in each municipality. The experiment was conducted from April 2014 to May 2016, a total of 24 months. Methodology: 24 perches were used in each area. Seed rain and natural regeneration were evaluated. Collectors were installed at the perch bases and the seeds sampled monthly, quantified and identified. Every twelve months, ...
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Lowlands Dense Ombrophilous Forest is one phytophysiognomies of Atlantic Forest in Brazil. The main ecological characteristic of this forest is the Ombrophilous environment, related to high rainfall and temperature indexes. Nutrient... more
Lowlands Dense Ombrophilous Forest is one phytophysiognomies of Atlantic Forest in Brazil. The main ecological characteristic of this forest is the Ombrophilous environment, related to high rainfall and temperature indexes. Nutrient cycling is well balanced in the periods of good thermo-pluviometric distribution. Global climatic changes have been intensifying in recent years making rainfall irregular, changing its distribution and intensity throughout the year. This can affect the natural regeneration and vegetative growth of the species. This study aimed to correlate litterfall and nutrient contribution with climatic variations, identifying the level of importance of this correlation and which nutrients may have their compromised cycling. Literfall was collected monthly in 40 collectors. N, P, K, Ca and Mg contents were determined and their stocks were calculated. The litter deposition was 8,261.15 kg ha-1 year-1 and was not influenced by rainfall and temperature. The N, P, K, Ca a...
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The objective was to analyze the forest landscape structure of fragments at different altitudes in dry region. In order to do so, RapidEye images acquired in the year of 2014 were segmented, identified the Forest and Other uses classes... more
The objective was to analyze the forest landscape structure of fragments at different altitudes in dry region. In order to do so, RapidEye images acquired in the year of 2014 were segmented, identified the Forest and Other uses classes and classified. Categorical maps were made and inserted in raster format in the Fragstats software, and text files were generated for calculations of class-level metrics and landscape-wide and then analyzed. The results of the parameters determined that the most affected and fragmented environments are those with lower altitudes, because of the forest cover of these environments is under strong pressure, since they are surrounded mainly by the Agropecuarian class, providing more susceptibility to fragmentation and external influences. Therefore, using the metrics together it was verified that there is a high shredding and this shredding has relation with the altitudinal gradient, since the lower the altitude, the lower the connectivity and thus the lo...
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Caatinga (dryland) plants used as fuel by rural communities were examined to verify the criteria that determined the preference and use of each species, as well as the techniques and patterns involved in their harvesting. Fieldwork was... more
Caatinga (dryland) plants used as fuel by rural communities were examined to verify the criteria that determined the preference and use of each species, as well as the techniques and patterns involved in their harvesting. Fieldwork was carried out utilizing various ...