Phytosanity
Mostrando 1-9 de 9 artigos, teses e dissertações.
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1. Bioecological studies of Neozygites floridana (Entomophthorales: Neozygiteceae), the fungal pathogen of Tetranychus evansi (Acari: Tetranychidae) / Estudos bioecológicos de Neozygites floridana (Entomophthorales: Neozygitaceae) fungo patogênico de Tetranychus evansi (Acari: Tetranychidae)
The tomato red spider mite, Tetranychus evansi Baker and Pritchard is an important exotic pest of Solanaceae in Europe and Africa. It is suggested that this mite could have originated from South America, a region where it is not considered as an important pest. An important natural enemy of T. evansi in Brazil is the fungus Neozygites floridana Weiser and Mu
Publicado em: 2009
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2. Action mechanisms of antimicrobial volatile organic compounds produced by Saccharomyces cerevisiae on the development of Guignardia citricarpa, causal agent of the citrus black spot / Mecanismos de ação de compostos orgânicos voláteis antimicrobianos produzidos por Saccharomyces cerevisiae sobre o desenvolvimento de Guignardia citricarpa, agente causal da pinta preta dos citros
A pinta preta dos citros tem como agente causal o fungo G. citricarpa. A doença causa depreciação estética dos frutos e praticamente inviabiliza a exportação de laranja in natura principalmente para a União Européia, por ser considerada uma doença quarentenária. Frutos colhidos contendo infecções quiescentes, embora sem sintomas, podem desenvolv�
Publicado em: 2009
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3. Produção, nutrição e fitossanidade de cultivares de tomateiro, sob manejo orgânico
The indiscriminate use of agrochemical products on tomato crops, besides increasing production costs, has damaged the producers and consumers health and also the environment. The organic management, together with the use of adapted varieties may be a viable alternative to minimize these negative impacts. Thus, this work had as an aim to evaluate the producti
Publicado em: 2008
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4. Xanthomonas spp. causadoras de mancha bacteriana do tomateiro (Lycopersicon esculentum Mill.): detecção em sementes e diferenciação / Xanthomonas spp. causing the tomato (Lycopersicon esculentum Mill.) bacterial spot: detection in seeds and differentiation
The tomato is the second economical important horticultural crop in the world, being one of the most exigent cultures in phytosanitary cares, due to the large number of diseases that attack the culture and for the high destructive capacity and difficult control of the pathogens. The bacterial-spot, caused by species of the genus Xanthomonas (X. euvesicatoria
Publicado em: 2007
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5. Epidemiologia do cancro cítrico (Xanthomonas axonopodis pv. citri) em laranja Pêra (Citrus sinensis) sob condições de controle químico e cultural / Epidemiology of citrus canker (Xanthomonas axonopodis pv. citri) on Pêra sweet orange (Citrus sinensis) under chemical and cultural control
Citrus canker, caused by Xanthomonas axonopodis pv. citri, is one of the most important diseases to citrus production. The effect of alternative measures of citrus canker control is very important to areas where plant eradication is the most important measure of control, as in Sao Paulo State, as well as to areas where eradication is not a major component of
Publicado em: 2006
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6. Antifungal activity of secondary metabolites produced by Bacillus pumilus MAIIIM4a, an endophytic from cassava. / Atividade antifúngica de metabólitos secundários produzidos pelo endófito de mandioca Bacillus pumilus MAIIIM4a.
Endophytic microorganisms are defined as organisms that inhabit the interior of a vegetable at least during a period of the vital cycle, without causing any apparent damage. In the search for new organisms and new secondary metabolites, a study was conducted to evaluate the chemical diversity of endophytic bacteria through the isolation and identification of
Publicado em: 2005
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7. Patossistema caupi X Macrophomina phaseolina: método de detecção em sementes, esporulação e controle do patógeno. / The pathosystem cowpea x Macrophomina phaseolina: detection in seeds, esporulation and pathogen control.
Notwithstanding the specie Vigna unguiculata (L.) Walp is sufficiently rustic and adapted to the adverse conditions of the Brazilian soil and climate, its improvement is very low. Many causes have been raised in order to explain such behavior; among them the fungal diseases stand out, over all those whose pathogens are transmitted by the seeds especially the
Publicado em: 2005
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8. Estimates of genetic parameters of wood traits for sawn timber production in Eucalyptus grandis
In this study, the breeding perspectives of 41 open-pollinated progenies of Eucalyptus grandis were evaluated based on their wood traits. The progenies were distributed in two experiments in a randomized complete block design, with three replicates and linear plots containing six plants each. The traits were assessed at eight years of age. Two trees from eac
Genetics and Molecular Biology. Publicado em: 2004
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9. Aspectos etnoentomológicos, socioeconômicos e ecológicos relacionados à cultura da erva-mate (Ilex paraguariensis) no município de salto do lontra, Paraná, Brasil. / Ethnoentomological, socioeconomic and ecological aspects related to the yerba mate (ilex paraguariensis) culture in the municipal district of Salto da Lontra, Paraná, Brazil.
This study was carried out with the objective of accomplishing an ethnoentomological study with the yerba mate producers of the Municipal district of Salto do Lontra, Southwest area of Paraná, aiming at diagnosing elements for a management project that leads to a contribution towards a solution to the plant health/crop protection, socioeconomic and environm
Publicado em: 2004