Sitobion Avenae
Mostrando 1-9 de 9 artigos, teses e dissertações.
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1. Cytogenetic identification of wheat-Psathyrostachys huashanica amphiploid × triticale progenies for English grain aphid resistance
English grain aphid (EGA, Sitobion avenae Fabricius) is an important pest in wheat (Triticum aestivum L.). To develop EGA-resistant varieties, introducing the desirable genes from related species is regarded as an efficient avenue. In this study, the F1, F2 and F3 plants derived from the cross of EGA-susceptible wheat-Psathyrostachys huashanica Keng ex Kuo a
Sci. agric. (Piracicaba, Braz.). Publicado em: 2013-06
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2. Barley yellow dwarf virus-PAV in Brazil: seasonal fluctuation and biological characteristics
The yellow dwarf disease in winter cereal crops is caused by species of Barley yellow dwarf virus (BYDV) and Cereal yellow dwarf virus (CYDV) (Luteoviridae). These viruses are transmitted to grasses (Poaceae) by aphids (Aphididae) and the frequency of virus population is affected by oscillations in the vector and host populations. Seasonal fluctuations of BY
Trop. plant pathol.. Publicado em: 2013-02
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3. Infestação e parasitismo natural de afídeos em pastagens com espécie única ou mistura de aveia preta e azevém
Algumas espécies de pulgões são importantes pragas de cereais, atacando também pastagens de gramíneas. Normalmente, essas pragas não são controladas nas pastagens e podem tornar-se fontes de infestação dos afídeos para os cereais cultivados. A dinâmica dos afídeos e de seus inimigos naturais é pouco conhecida em sistemas de pastagem. O objetivo
Rev. Bras. entomol.. Publicado em: 25/09/2012
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4. Influência de fragmentos de mata sobre a comunidade de inimigos naturais de pulgões-do-trigo (Hemiptera: Aphididae)
Este estudo objetivou investigar a influência da distância do fragmento de mata nativa sobre a comunidade de inimigos naturais de pulgões-do-trigo (Hemiptera:Aphididae). O trabalho foi desenvolvido durante as safras de trigo 2008 e 2009, na região Norte do Paraná. Em 2008, a pesquisa foi conduzida em duas áreas comerciais de trigo (Triticum aestivum L.
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/11/2011
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5. Biologia e comportamento de Sitobion avenae (Hemiptera: Aphididae) em quatro cultivares comerciais de trigo (Triticum aestivum L.) / Biology and behavior of Sitobion avenae (Hemiptera: Aphididae) in four commercial varieties of wheat
The use of resistant wheat cultivars to S. avenae is important for the management of culture due to the potential damage of aphid. In Brazil, however, little is known about the resistance of wheat cultivars to S. avenae. The goal of this work was to assess the behaviour and biology of S. avenae in leaves and ears of four commercial wheat cultivars to verify
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 13/05/2011
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6. Longevity, fecundity and embryogenesis in brazilian aphids.
Afideos causam grande dano a cereais cultivados. Com o objetivo de subsidiar programas de controle, propriedades biologicas sujeitas a forte pressao de selecao foram estudadas nas especies sul-brasileiras Schizaphis graminum, Sitobion avenae e Rhopalosiphum padi (Homoptera:Aphididae). Mudancas na morfologia externa dos embrioes foram analisadas sob microscop
Pesquisa Agropecuaria Brasileira. Publicado em: 2011
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7. Biological control of the wheat louse Sitobion avenae (Fabricius 1775) by the parasite Aphidius colemani (VIEREK 1912) in the city of Medianeira, ParanÃ, Brazil / Controle biolÃgico do pulgÃo de trigo Sitobion avenae (Fabricius 1775) pelo parasitÃide Aphidius colemani Viereck, 1912 em Medianeira, PR, Brasil
Historically, aphids were the main phytosanitary problem in the production of winter cereals in de 70âs in southern Brazil. Attacking intensively during wheatâs emergence to the affiliation, itâs usually fatal to the plant. However, these bugs possess important population suppression that, although considered the most efficient and specific, had a frail r
Publicado em: 2004
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8. In vitro interactions of the aphid endosymbiotic SymL chaperonin with barley yellow dwarf virus.
Barley yellow dwarf virus (BYDV)-vector relationships suggest that there are specific interactions between BYDV virions and the aphid's cellular components. However, little is known about vector factors that mediate virion recognition, cellular trafficking, and accumulation within the aphid. Symbionins are molecular chaperonins produced by intracellular endo
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9. l-Ascorbic Acid Is Accumulated in Source Leaf Phloem and Transported to Sink Tissues in Plants1
l-Ascorbic acid (AsA) was found to be loaded into phloem of source leaves and transported to sink tissues. When l-[14C]AsA was applied to leaves of intact plants of three different species, autoradiographs and HPLC analysis demonstrated that AsA was accumulated into phloem and transported to root tips, shoots, and floral organs, but not to mature leaves. AsA
American Society of Plant Physiologists.