Tropical Flowers
Mostrando 37-48 de 58 artigos, teses e dissertações.
-
37. VariaÃÃes florais e heterostilia em Palicourea rigida (Rubiaceae) nos cerrados do Brasil Central / Floral variations and heterostyly in Palicourea rigida H.B.K. (Rubiaceae) in the cerrados of Central Brazil
The distyly is a floral polymorphism controlled genetically, where the populations present individuals with pin flowers, that possess long styles and short stamens, and individuals with thrum flowers, that possess short styles and long stamens. Their populations tend to be isoplethyc and anomalies in the distribution of pin and thrum flowers in the populatio
Publicado em: 2007
-
38. Heliconia psittacorum L.: Propagation and fertilisation during the early phase of cultivation / Heliconia psittacorum L.: Propagação e adubação na fase inicial do cultivo
Dados atuais mostram que o mercado de flores está em franco crescimento no Brasil e no mundo e se apresenta promissor para os próximos anos. A floricultura tropical é adequada como cultura alternativa ou auxiliar para pequenos produtores. Estudos sobre estas plantas, entretanto, são escassos. A carência de informações é constatada em quase todas as e
Publicado em: 2007
-
39. Sistemática do gênero Oxalis L.(Oxalidaceae R.Br.) no Estado de Pernambuco / Systematic of the genera Oxalis L. (Oxalidaceae R.Br.) in Pernambuco State,Brazil
Oxalis L. is outstanding as the major genera of the famiiy Oxalidaceae, detaining around 800 species, approximately, 136 are found in Brazil. This work aimed to study the diversity of OxaIis in Pernambuco through morphological data. These data were based on the analysis of approximately 500 exsicates from the major Brazilian herbariums, as well as matenals o
Publicado em: 2007
-
40. Frutos do Cerrado como sítios de criação de drosofilídeos (Insecta, Diptera) : Brosimum gaudichaudii (Moraceae), Byrsonima verbascifolia (Malphighiaceae) e Caryocar brasiliense (Caryocaraceae)
Drosophilids are microorganism consumers which develop on fleshy fungi, leaves, stems, roots, slime fluxes, flowers and specially fallen fruits (in tropical areas). The flies use these substrata for feeding and laying eggs (breeding sites). Although these investigations in Brazil began in the 50s, the breeding sites of drosophilids in natural environments ar
Publicado em: 2007
-
41. Heliconia "Golden Torch" macronutrients deficiency. / Deficiência de macronutrientes em helicônia "Golden Torch".
Com o objetivo de descrever os sintomas de deficiências nutricionais, avaliar o efeito da omissão de macronutrientes no crescimento, características da primeira haste floral e longevidade pós-colheita de Heliconia psittacorum x Heliconia spathocircinata cultivar Golden Torch foram conduzidos experimentos em casa de vegetação, mediante técnica do eleme
Publicado em: 2007
-
42. Rubiaceae Juss. of Parque Estadual das Varzeas do Rio Ivinhema, Mato Grosso do Sul state : florisitic, reproductive system, spatial distribuition and relationships allometry of dytylous species / Rubiaceae Juss. do Parque Estadual das Varzeas do Rio Ivinhema, Mato Grosso do Sul : floristica, sistema reprodutivo, distribuição espacial e relações alometricas de especies distilicas
The Rubiaceae family is comprehended by almost 637 genera and 12.000 species distributed mainly in the tropical and subtropical regions of the world. In Brazil there are 101 genera and 1.010 species, distributed in several formations vegetation. It is represented by a great number of species in the understory of the tropical forests, exercising great influen
Publicado em: 2007
-
43. Picramnia tumbesina: una nueva Picramniaceae, endémica del bosque seco tropical al occidente de Ecuador
Picramnia tumbesina a new dioecious tree, endemic to tropical dry forest in western Ecuador is described. It is similar to P. sellowii Planch. subsp. sellowii, but differs by having ramiflorous inflorescences, fistulose branches, larger leaflets and leaves, and longer pedicels on the pistillate flowers and fruits.
Acta Botanica Brasilica. Publicado em: 2006-06
-
44. Antracnose em inflorescências de plantas ornamentais tropicais:caracterização de isolados de Colletotrichum, escala diagramática e reação de cultivares
The tropical flower crop has increased in several states of the Northeast region of Brazil based on the high acceptance of the product and it potencial as a profitable activity. The anthracnose caused by Colletotrichum spp. can affects many of these species influencing negatively the quantity and quality of the final product. The present work aimed: a) to ch
Publicado em: 2006
-
45. Revisão de Pleonotoma Miers (Gignonieae, Bignoniaceae)
Pleonotoma Miers (Bignonieae, Bignoniaceae) is a monophyletic genus of neotropical distribution ranging from Guatemala to Brazil and Bolivia, including Trinidad and Tobago, with its center of diversity in northern Brazil. It is distributed in tropical rain forests in Central and South America, transitional forests between rain forests and the hyperseasonal P
Publicado em: 2006
-
46. Efeito de borda sobre a fenologia, as sÃndromes de polinizaÃÃo e a dispersÃo de sementes de uma comunidade arbÃrea na Floresta AtlÃntica ao norte do Rio SÃo Francisco
Background and aims The high plant species richness and the pollination mechanisms in the tropical forests are endangered by the loss of ecological groups, consequence of the forest fragmentation. The objective of this study was to evaluate the edge effect on the pollination and the reproductive systems of a tree community. Methods 600 tree individuals belon
Publicado em: 2006
-
47. Fitonematóides associados a zingiberales ornamentais em Pernambuco : estimativa do número de amostras para monitoramento, efeito de indutores de resistência e avaliação de mecanismos envolvidos
The expressive increase in production of tropical flowers in Pernambuco indicates the State rising interest in ornamentals. This study had the objectives of: 1) screening plant parasitic nematodes in Zingiberales (Etlingera elatior, Zingiber spectabilis, Alpinia purpurata, Musa coccinea, Tapeinoquilos ananassae e Heliconia spp.) producing areas of Pernambuco
Publicado em: 2006
-
48. ISOLAMENTO E IDENTIFICAÇÃO DE PRINCÍPIOS ATIVOS DE CALOPHYLLUM BRASILIENSE Camb. (CLUSIACEAE) / ISOLATION AND IDENTIFICATION OF ACTIVE PRINCIPLES FROM CALOPHYLLUM BRASILIENSE (CLUSIACEAE)
The genus Calophyllum is a large group of tropical trees and frequently employed in folk medicine for the treatment of several ailments. Calophyllum brasiliense, commonly known in Brazil as Guanandi or Guarandi, is widely used as a remedy for the treatment of inflammation and ulcers. The present study deals to the isolation and identification of bioactive co
Publicado em: 2005