Variabilidade genética entre e dentro de subpopulações de ipê-roxo Handroanthus Heptaphyllus (Vell.) Mattos e seu sistema reprodutivo

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Atividade biológica de gel dentifrício e enxagüatório bucal contendo extratos vegetais

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Ontogenia do óvulo e da Antera de Cybistax antisyphilitica (Mart.) Mart. (Bignoniaceae)

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Determinação do número cromossômico de espécies arbóreas nativas com potencial madeireiro

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Qualidade de compostos orgânicos produzidos com resíduos do processamento de plantas medicinais

Pós-graduação em Agronomia (Energia na Agricultura) - FCA

Morfo-anatomia, citogenética e palinologia em espécies de ipês (Bignoniaceae)

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Using phenology to assess urban heat islands in tropical and temperate regions

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

STORAGE OF Handroanthus umbellatus SEEDS

Seed storage under controlled environmental conditions represents one of the most important lines of research to be applied on short-lived forest species as Handroanthus. The present research aimed to identify the most suitable seed storage conditions and longevity behavior of Handroanthus umbellatus seeds subject to the following storage treatments: packaging permeable paper bags under a no-controlled laboratory temperature and humidity (control) and multiwall semipermeable bag at temperatures of -18 degrees C ,1 degrees C and 25 degrees C. Seeds were dried to 6.3% of water content. Stored seeds were evaluated every three months until 24 months for water content, germination percentage and vigor utilizing first counting test. Seeds of T. umbellata are orthodox, with low longevity under natural conditions, once they remain viable for less than 5 months. The best conditions of seed preservation of these species were obtained by storage at -18 degrees C in multiwall bags. Under these conditions physiological seed quality remains unchanged for a 24-month period.

Efeito da aplicação de piraclostrobina no crescimento de plantas jovens de ipê roxo

O ipê roxo é uma árvore de grande importância comercial e farmacológica, além de possuir grande beleza e, por esse motivo, ser muito utilizado em paisagismo. Apesar da existência de diferentes fungicidas no mercado, o uso das estrobilurinas, como a piraclostrobina, tem aumentado significativamente pelo seu efeito fisiológico, que altera o metabolismo da planta, acelerando o desenvolvimento da planta. Assim, neste trabalho analisou-se o crescimento de plantas jovens de Tabebuia avellanedae Lorentz ex Griseb em função da aplicação de piraclostrobina em diferentes concentrações. Os tratamentos foram realizados em intervalos de 30 dias com as seguintes concentrações do fungicida: piraclostrobina 0,375g L-1, piraclostronina 0,750g L-1 e piraclostrobina 1,125g L-1 e a testemunha. Foram avaliadas a altura das plantas, diâmetro do caule, número de folhas, massa seca das folhas, caule e raízes, bem como a avaliação de trocas gasosas e atividade enzimática. As plantas tratadas com piraclostrobina apresentaram incremento na massa seca, massa fresca e na taxa fotossintética na maioria dos tratamentos avaliados

Insecticidal Effect of Extracts from Native Plants of Mato Grosso do Sul State on Sitophilus zeamais Mots (Coleoptera: Curculionidae)

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Plantas medicinais do SUS: espécies comuns da região de Bauru-SP

This work deals with present and discuss mainly the chemical composition and pharmacological activities of each species of the National List of Medicinal plants of interest to SUS (RENISUS) contained in scientific articles that are found in the Bauru-SP region. Such information compiled in this study may help in the advancement of scientific research, promoting the speed in bibliographic queries these species. In the present work was carried out consultation papers and described in the form of literature review, published information of the species listed in Renisus specific to the Bauru-SP region are: Aloe spp* (A. vera or A. barbadensis), Schinus terebinthifolius = mastic Schinus, trimera Baccharis, Mikania spp* (M. glomerata and M. laevigata), Vernonia condensata, Tabebuia avellanedeae, Chenopodium ambrosioides, Momordica charantia, Phyllanthus spp* (P. amarus, P. niruri, P. tenellus and P. urinaria), Stryphnodendron adstringens = Stryphnodendron barbatimam, pulegium Mentha, Mentha spp* (M. crispa, M. piperita or M. villosa), Plectranthus barbatus = Coleus barbatus, Persea spp* (gratissima or P. americana P.), Bauhinia spp* (B. affinis, B. forficata or B. variegata), Copaifera spp*, Morus sp*, Eugenia uniflora or brasiliana Myrtus*, Psidium guajava, Syzygium spp* (S. jambolanum or S. cumini), Passiflora spp* (P. alata, P. edulis or P. incarnata), Punica granatum and Casearia sylvestris. Studies have shown that the use of plants as alternatives treatment and sustainable use of Brazilian biodiversity has a breakthrough in research regarding the chemical composition of each species of RENISUS relationship. Many phytochemical studies are reported compiled with possible pharmacological indications of each species. Thus enabling the use and production of herbal medicines in SUS

Viabilidade de sementes de Handroanthus heptaphyllus (Vell.) Mattos armazenadas nos frutos

Pós-graduação em Ciência Florestal - FCA

Armazenamento de sementes germinadas de Handroanthus heptaphyllus (Vell.) Mattos e seu comportamento em viveiro

Pós-graduação em Ciência Florestal - FCA

Influence of moisture content in some mechanical properties of two brazilian tropical wood species

This study aimed, with the aid of analysis of variance (ANOVA), to investigate and quantify the influence of moisture ranging between 12% and over 30% (fiber saturation) on the mechanical properties: strength and modulus of elasticity in compression and in tension parallel to grain; modulus of rupture and modulus of elasticity in static bending; shear strength parallel to grain considering wood species Ipê (Tabebuia sp) and Angelim Araroba (Vataireopsis araroba). Tests were performed according to the assumptions and calculating methods Brazilian standard ABNT NBR 7190, Anexx B, totalizing 400 tests. Results of ANOVA revealed a significant reduction (16% on average) for mechanical properties wood due to the increase in moisture content from 12% to over 30% (fiber saturation). The same behavior also occurred when assembly containing the two species was considered.

Parasites in the neighbourhood: Interactions of the mistletoe Phoradendron affine (Viscaceae) with its dispersers and hosts in urban areas of Brazil

Mistletoes constitute an important food resource for animals in many ecosystems. However, these plants are considered pests in urban areas because of deleterious effects they have on the host trees. Studies in urban areas were mostly focused on listing host species or procedures to control the "pest". In this sense, broader studies including several aspects of mistletoes ecology in urban ecosystems are still missing. We studied the interaction of the mistletoe, Phoradendron affine, with its dispersers and hosts in two urban sites in Uberlandia, Brazil. Phoradendron affine fruits were consumed almost exclusively by Euphonia chlorotica, which was crucial for seed germination. Parasitism was recorded in five hosts, two native (Handroanthus chrysotrichus and Tabebuia roseoalba) and three exotic species (Spathodea campanulata, Ligustrum lucidum and Melia azedarach). Mistletoes were found parasitizing larger host trees, a trend commonly reported for mistletoe-host interaction. Mistletoe seed germination was not affected by the trees species, whether host or non-host, but the radicle of germinated seeds could not penetrate the bark and seedlings invariably died in non-host species. We found a high prevalence of parasitism in our study, in comparison to what previous studies reported for natural areas. The spatial distribution of the hosts and high light incidence on isolated host trees may lead to this high prevalence in urban areas. Rather than eradicated, mistletoes in urban areas should be ecologically managed and their importance for bird species conservation must be considered. More studies to determine which bird species are favoured by mistletoe presence in urban areas will be essential for, this purpose. (C) 2012 Elsevier GmbH. All rights reserved.