Navegação Ciências Agrárias por Título
Resultados 2537-2556 de 3899
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Neurological disorder associated with pestivirus infection in sheep in Rio Grande do Sul, Brazil
(2004) [Artigo de periódico]Um cordeiro de dois meses de idade apresentando sinais severos de doença neurológica foi enviado ao Laboratório de Patologia Veterinária – Universidade Federal do Rio Grande do Sul. Os sinais clínicos consistiam de tremores ... -
Neurotoxicose em bovinos associada ao consumo de bagaço de matle contamindado por Aspergillus clavatus
(2009) [Artigo de periódico]Descrevem-se dois surtos de uma doença neurológica que afetou rebanhos bovinos leiteiros que consumiam bagaço de malte contaminado por Aspergillusclavatus no município de Viamão, estado do Rio Grande do Sul. A morbidade ... -
Neurovirulência e neuroinvasividade de herpesvírus bovinos tipos 1 e 5 em coelhos
(2002) [Artigo de periódico]Com o objetivo de avaliar a capacidade dos herpesvírus bovinos tipos 1 e 5 (BHV-1 e BHV-5) de invadir e replicar no sistema nervoso central (SNC) (neuroinvasividade), bem como sua capacidade de induzir doença neurológica ... -
A new and accurate qPCR protocol to detect plant pathogenic bacteria of the genus ‘Candidatus Liberibacter’ in plants and insects
(2023) [Artigo de periódico]Four pathogenic bacterial species of the genus ‘Candidatus Liberibacter’, transmitted by psyllid vectors, have been associated with serious diseases affecting economically important crops of Rutaceae, Apiaceae and Solanaceae ... -
New DArT markers for oat provide enhanced map coverage and global germplasm characterization
(2009) [Artigo de periódico]Background: Genomic discovery in oat and its application to oat improvement have been hindered by a lack of genetic markers common to different genetic maps, and by the difficulty of conducting whole-genome analysis using ... -
A new species of Andocaeculus (Acari, Caeculidae) from the Pampa biome, southern Brazil
(2014) [Artigo de periódico]A new caeculid species Andocaeculus caioi sp. nov. is described from Pampa biome in south Brazil. The species of this family are usually large and strong sclerotized mites with robust and spinulose legs I and II. Until now ... -
A new species of Fernandezina (Araneae, Palpimanidae) from southern Brazil
(2014) [Artigo de periódico]A new species of Fernandezina Birabén, 1951, F. nica sp. nov. is described from Rio Grande do Sul state, in southern Brazil. Fernandezina pulchra Birabén, 1951, is registered for Brazil and a new geographic record in Brazil ... -
A new species of rake-legged mite Neocaeculus (Acari, Caeculidae) from Brazilian semiarid and new data on distribution of Andocaeculus caioi
(2018) [Artigo de periódico]A new caeculid species Neocaeculus setecidades sp. nov. from the semiarid is described from the National Park Sete Cidades located in the state of Piauí, Brazil. The species is included in Neocaeculus Coineau, 1967 due the ... -
A new species of velvet mite from meridional South America of the genus Clavismaris (Acari, Erythraeoidea, Smarididae, Hirstiosomatinae)
(2018) [Artigo de periódico]A new species of Clavismaris Southcott, 1963 is described from the southern limit of distribution of the Brazilian Atlantic Forest at Rio Grande do Sul state, Brazil. The specimens were collected by pyrethroid tree canopy ... -
New wild diploids in Paspalum notatum Flügge (Poaceae) : potential accessions for use in breeding
(2018) [Artigo de periódico]Paspalum notatum is a polymorphic species with two accepted varieties, according to the ploidy level. The ploidy level is closely related to the reproductive mode of this species. Usually, diploid cytotypes have sexual ... -
Nitrogen application timing and soil inorganic nitrogen dynamics under no-till oat/maize sequential cropping
(2006) [Artigo de periódico]A época de aplicação de nitrogênio no milho é um fator chave no sistema de culturas aveia/milho. O objetivo deste estudo foi avaliar a influência da aplicação de N em présemeadura, na semeadura do milho e em cobertura na ... -
Nitrogen doses in the growth of Calceolaria x herbeohybrida in pot
(2017) [Artigo de periódico]Calceolaria x herbeohybrida Voss (pocketbook plant, calceolaria) is an herbaceous perennial and floriferous species that can be grown in pots or beds. Nitrogen is usually the most required nutrient, being necessary to ... -
Nitrogen fertilization for ministrains of Campomanesia aurea O. Berg and its influence on productivity and rooting of minicuttings at different seasons of the year
(2019) [Artigo de periódico]The objective of this work is to evaluate the effects of nitrogen doses on the ministrain of C. aurea conducted in minigarden system regarding productivity, rooting and root system quality of minicuttings at different ... -
Nitrogen fertilization for the nursery production of australian red cedar
(2019) [Artigo de periódico]Fertilization is one of the most important cultural practices in the production of seedlings, significantly influencing the quality and establishment of new stands. As the production of Toona ciliata var. australis lacks ... -
Nitrogen fertilization of no-tillage winter cereals in the south-central region of Paraná, Brazil
(2017) [Artigo de periódico]High winter cereal yields depend on an adequate supply of nitrogen (N). We developed a system for indicating N rates for wheat and barley in the South-Central region of the state of Paraná, Brazil, using results of 72 field ... -
Nitrogen fractions in the microbial biomass in soils of southern brazil
(1999) [Artigo de periódico]The reaction of nitrogen compounds with ninhydrin can be used as an indicator of cytoplasmic materials released from microbial cells killed by fumigation. Total-N, ninhydrin-reactive-N (NR-N), ammonium-N (A-N), and a-amino-N ... -
Nitrogênio da biomassa microbiana, em solo sob diferentes sistemas de manejo, estimado por métodos de fumigação
(1998) [Artigo de periódico]Este trabalho teve como objetivo avaliar o nitrogênio da biomassa microbiana, por meio dos métodos de fumigação-incubação (FI) e fumigaçãoextração (FE), em sistemas de manejo do solo e de culturas. O nitrogênio da biomassa ... -
Nitrogênio disponível ao milho : crescimento, absorção e rendimento de grãos
(2011) [Artigo de periódico]Este trabalho visou quantificar o nitrogênio (N) disponível ao milho e avaliar seu efeito sobre o índice de área foliar (IAF), a produção de massa seca da parte aérea (MSPA), o N absorvido pela parte aérea e o rendimento ... -
Nitrogen management in wheat based on the normalized difference vegetation index (NDVI)
(2018) [Artigo de periódico]Biomass production and nitrogen (N) accumulated in wheat shoots may be used for quantifying optimal topdressing nitrogen doses. The objective of this study was to develop and validate models for estimating the amount of ... -
Nitrous oxide and methane fluxes in south Brazilian gleysol as affected by nitrogen fertilizers
(2010) [Artigo de periódico]Fertilizantes nitrogenados incrementam os fluxos de óxido nitroso (N2O) e podem deprimir a oxidação de metano (CH4) em solos agrícolas. Entretanto, não existem resultados da magnitude desses efeitos nas condições edafoclimáticas ...