Please use this identifier to cite or link to this item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/503004
Title: Nematóides associados ao declínio do capim Brachiaria brizantha cv. Marandu no estado do Acre, Brasil.
Authors: SHARMA, R. D.
CAVALCANTE, M. de J. B.
VALENTIM, J. F.
Affiliation: RAVI DATT SHARMA, CPAC
MARIA DE JESUS BARBOSA CAVALCANTE, DPD
JUDSON FERREIRA VALENTIM, CPAF-Acre.
Date Issued: 2000
Citation: In: INTERNATIONAL SYMPOSIUM SOIL FUNCTIONING UNDER PASTURES IN INTERTROPICAL AREAS, 2000, Brasília, DF. Extended abstracts. Planaltina, DF: Embrapa Cerrados, 2000.
Pages: p. 83-86.
Description: Seis espécies de fitonematóides foram identificadas nas seguintes freqüências de ocorrência nas57 amostras coletadas de sete localidades no estado do Acre dos quais 15 das touceiras doentes; 20 decada em declínio e sadias: Aphelenchoides sp. (100%), Ditylenchus sp. (95%), Pratylenchus zeae (63%),Helicotylenchus dihystera (21%), Meloidogyne sp. (7%) e Criconemella sp. (3,5%). Em geral, asdensidades populacionais de fitonematóides foram muito baixas em todas as amostras. Duas espécies denematóides micófagos e sua freqüências de ocorrências nas amostras foram: Aphelenchus avenae (100%)e Tylenchus sp. (100%) além de nematóides de vida livre (100%). Six species of plant parasitic nematodes in their frequencies of ocurrence (Aphelenchoides sp. (100%),Ditylenchus sp. (100%), Pratylenchus zeae (63%), Helicotylenchus dihystera (21%), Criconemella sp.(3.5%), and Meloidogyne sp. (7%), were encountered in 57 samples collected from seven sites in the Stateof Acre, of which 15 from dead; 20 each from declining and healthy Brachiaria brizantha cv. Marandugrass stumps and 2 samples from Panicum maximum and Pueraria phaseoloides. In general, thepopulation densities of nematodes in samples were extremely low in all the samples. Two species ofmycophagous nematodes (Aphelenchus avenae (100%) and Tylenchus sp. (100%), besides free-livingnematodes were also found in these samples.
Thesagro: Gramínea Forrageira
Parasito de Planta
Nematóide
Helminto
NAL Thesaurus: Forage grasses
Urochloa brizantha
Plant parasitic nematodes
Helminths
Keywords: Brachiaria brizantha cv Marandu
Acre
Amazonia Occidental
Amazônia Ocidental
Western Amazon
Type of Material: Artigo em anais e proceedings
Access: openAccess
Appears in Collections:Artigo em anais de congresso (CPAF-AC)

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