Citrus Crop
Mostrando 25-36 de 49 artigos, teses e dissertações.
-
25. Differential expression of genes identified from Poncirus trifoliata tissue inoculated with CTV through EST analysis and in silico hybridization
Citrus is the most important fruit crop in Brazil and Citrus tristeza virus (CTV) is considered one of the most important pathogens of citrus. Most citrus species and varieties are susceptible to CTV infection. However, Poncirus trifoliata, a close relative of citrus, is resistant to the virus. In order to better understand the responses of citrus plants to
Genetics and Molecular Biology. Publicado em: 2007
-
26. Dinâmica populacional de plantas daninhas, desenvolvimento, estado nutricional e produção de citros em função da associação de adubos verdes, cobertura morta e herbicidas / Population dynamics of weeds, development, nutrition and citros production in function of association of cover crops, mulch and herbicides
The objective of this research was to evaluate the effects of cover crops from grass and perennial leguminous in the orchard inter-rows, mulch, produced through mechanical management with a lateral rotary mower from inter-row cover crops associated with herbicides applied in pos-emergence, on the rows, on population dynamics of weeds, soil chemical character
Publicado em: 2007
-
27. A genomic approach to characterization of the Citrus terpene synthase gene family
Terpenes are a very large and structurally diverse group of secondary metabolites which are abundant in many essential oils, resins and floral scents. Additionally, some terpenes have roles as phytoalexins in plant-pathogen relationships, allelopathic inhibitors in plant-plant interactions, or as airborne molecules of plant-herbivore multitrophic signaling.
Genetics and Molecular Biology. Publicado em: 2007
-
28. Production and fruits quality of Tahiti lime tree irrigated with different frequencies irrigation and water depths / Produção e qualidade de frutos da limeira Tahiti irrigada com diferentes freqüências e lâminas de água
Aiminig to evaluate the effects of different water depths and irrigation frequencies on the parameters of production and fruits quality of Tahiti acid lime tree [Citrus latifolia (Yu. Tanaka) Tanaka], an experiment was conducted during the period of September 2006 to February 2007. The work was realized on a commercial orchard under trickle irrigation, where
Publicado em: 2007
-
29. Establishment of a trap cropping strategy for controlling sharpshooter vectors of Xylella fastidiosa in citrus groves / Estudos básicos para a utilização de plantio-isca visando ao controle de cigarrinhas vetoras de Xylella fastidiosa em pomares cítricos
Clorose Variegada dos Citros (CVC), causada pela bactéria Xylella fastidiosa Wells et al., tem causado grandes perdas na citricultura do estado de São Paulo, afetando cerca de 40% das plantas de laranja doce. A bactéria é transmitida por 12 espécies de cigarrinhas sugadoras de xilema (Hemiptera: Cicadellidae) da subfamília Cicadellinae. O manejo da CVC
Publicado em: 2007
-
30. Spatial and temporal evaluation of water balance processes in a soil with citrus / Avaliação espaço-temporal de processos do balanço de água em um solo com citros
The objective of the present work was to quantify and characterize spatial and temporal variability of water storage, matric potential, water flux density and actual evapotranspiration in an oxisol cropped to citrus. The experimental plot consisted of two transects with 20 observation points in a spacing of four meters. Each observation point was located in
Publicado em: 2006
-
31. Gene Expression in Xanthomonas axonopodis pv. citri Mediated by Plant Inducible Promoter (PIP-box) / "Expressão gênica em Xanthomonas axonopodis pv. citri controlada por promotores induzidos pela planta hospedeira"
The citrus canker, caused by the bacterial pathogen Xanthomonas axonopodis pv citri (Xac), is considered worldwide as one of the most important disease of citrus crop due to the lack of resistance in citrus plants and to the absence of efficient methods to control the disease. It was already shown that several genes involved in virulence and pathogenicity in
Publicado em: 2006
-
32. Avaliação da idade de corte e do uso de polpa cítrica sobre a qualidade fermentativa e estabilidade aeróbia da silagem de capim-elefante / Evaluation of crop age and addition of citrus pulp on fermentation pattern and aerobic stability of elephant grass silage
Foram estudados os efeitos da idade de corte e da adição de polpa cítrica sobre a qualidade fermentativa, estabilidade aeróbia e o valor nutritivo da silagem de capim-elefante. Utilizou-se um delineamento inteiramente casualizado com arranjo fatorial de tratamentos do tipo 5x4. O capim-elefante apresentando 40, 60, 80, 100, e 120 dias de crescimento foi
Publicado em: 2006
-
33. Modelagem espaço-temporal para dados de incidência de doenças em plantas. / Spatiotemporal modelling of plant disease incidence.
The information about the spatial-temporal dynamics is of fundamental importance in epidemiological studies for describing and understanding the development of diseases, for developing efficient sampling plans, for planning controlled experiments, for evaluating the effect of different treatments, and for determining crop losses. The Citriculture is the majo
Publicado em: 2005
-
34. Fluxos de agua em especie de citro (citrus sinensis L. Osbeck - laranja pera) - Campinas - São Paulo / Water flows in species of citrus (citrus sinensis L. Osbeck - Orange pear) - Campinas - São Paulo - Brazil
The variables ecofisiológicas exercise great influence, not only in the vegetative behavior of the cultivated plants, but, above all in your acting in relation to the productive characteristics. The studies on gas exchange have been enlarging since the decade of eighty, given your importance in tropical cultivations, just as, in citrus varieties. Has been i
Publicado em: 2005
-
35. Efeito do manejo alternativo sobre a descompactação do solo, fungos micorrízicos arbusculares nativos e produção em pomar convencional de Tangor Murcott . / Effect of alternative management on soil decompaction, indigenous arbuscular mycorrhizal fungi, and yield in convencional orchard of Murcott tangor.
O objetivo deste trabalho foi testar um manejo Alternativo em um pomar convencional de Tangerina Murcote (Citrus reticulata, Blanco X Citrus sinensis, Osbeck) enxertadas sobre limão cravo (Citrus limonia, Osbeck), com utilização de composto fermentado Bokashi, avaliando seu efeito sobre a compactação do solo, colonização radicular de fungos micorrízi
Publicado em: 2005
-
36. Mulches effect produced through mechanical management with a lateral rotary mower on the population dynamics of weeds on citrus. / Efeitos de diferentes coberturas mortas obtidas a partir do manejo mecânico com roçadeira lateral na dinâmica populacional de plantas daninhas em citros.
With the objective of evaluating the effect of the mulches produced by the cover crop Dolichos lablab, Cajanus cajan, Crotalaria juncea, Pennisetum glaucum, a mixture of three cover crops (Dolichos lablab + Cajanus cajan + Crotalaria juncea), and a natural infestation in orange tree plantations composed mostly by Panicum maximum on weeds and to evaluate the
Publicado em: 2004