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Interference by palisade grass on coffee seedlings inoculated with arbuscular mycorrhizal fungi

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dc.contributor.author Alecrim, A.O.
dc.contributor.author França, A.C.
dc.contributor.author Santos, E.A.
dc.contributor.author Moreira, S.D.
dc.contributor.author Leal, F.D.S.
dc.contributor.author Tibães, E.S.R.
dc.date.accessioned 2018-12-13T11:36:18Z
dc.date.available 2018-12-13T11:36:18Z
dc.date.issued 2016-10
dc.identifier.citation ALECRIM, A.O. et al. Interference by palisade grass on Coffee seedlings inoculated with arbuscular mycorrhizal fungi. Planta Daninha, Viçosa, v. 34, n. 4, p. 681-689, 2016. pt_BR
dc.identifier.issn 1806-9681
dc.identifier.uri http://dx.doi.org/10.1590/s0100-83582016340400008 pt_BR
dc.identifier.uri http://www.sbicafe.ufv.br/handle/123456789/10686
dc.description.abstract The purpose of this paper was to evaluate the effects of the interference by Urochloa brizantha on coffee seedlings inoculated with arbuscular mycorrhizal fungi. A randomized block design and a 4 x 2 layout was used, where factor A was constituted by seedlings inoculated with Rhizophagus clarus, Claroideoglomus etunicatum and Dentiscutata heterogama, as well as some that were not inoculated, and factor B, constituted by plants in competition or alone. The sowing was conducted on washed sand to produce the coffee seedlings, which, during the matchstick stage, were transplanted into polyethylene bags, and inoculated when showing six pairs of leafs. Then, they were transplanted into pots where they were subjected to interference from two plants of U. brizantha for 90 days, during which time their growth and nutrient accumulation were evaluated on the leaves. As a result, an interaction between the following factors was observed: plant height, leaf area, shoot dry weight, dry weight for roots and P, Mg and Zn content in coffee seedlings. The damaging effect on the growth and P accumulation caused by the weed was reduced in coffee seedlings inoculated with mycorrhiza. Another conclusion was that the inoculation factor increases the competitive power of coffee seedlings. pt_BR
dc.description.abstract Objetivou-se com este trabalho avaliar os efeitos da interferência de Urochloa brizantha (braquiária) em plantas de cafeeiro (Coffea arabica) inoculadas com fungos micorrízicos. Utilizou-se delineamento em blocos casualizados e disposição em esquema fatorial 4 x 2, em que o fator A foi composto por mudas inoculadas com Rhizophagus clarus, Claroideoglomus etunicatum e Dentiscutata heterogama e não inoculadas, e o fator B, por mudas de café sem e com interferência de U. brizantha. Fez-se a semeadura em areia lavada para produzir as mudas de café, que, quando atingiram a fase de “palito de fósforo”, foram transplantadas para sacos de polietileno e inoculadas com os esporos dos fungos no estádio de seis pares de folhas. Em seguida, elas foram transplantadas para vasos, onde foram submetidas à interferência de duas plantas de U. brizantha por 90 dias, quando foram avaliadas características de crescimento e acúmulo de nutrientes nas folhas. Como resultado, foram observadas interações entre os fatores altura de plantas, área foliar, massa seca da parte aérea, massa seca de raízes e teores de P, Mg e Zn em mudas de café. A competição com braquiária reduziu o crescimento e o acúmulo de matéria seca e fósforo das mudas de café, porém esses efeitos foram menores nas mudas inoculadas com os fungos micorrízicos arbusculares. Portanto, a inoculação aumenta o poder competitivo das mudas de café. pt_BR
dc.format pdf pt_BR
dc.language.iso pt_BR pt_BR
dc.publisher Sociedade Brasileira da Ciência das Plantas Daninhas pt_BR
dc.relation.ispartofseries Planta Daninha;v. 34, n. 4, p. 681-689, 2016;
dc.rights Open Access pt_BR
dc.subject Coffea arabica pt_BR
dc.subject Rhizophagus clarus pt_BR
dc.subject Claroideoglomus etunicatum pt_BR
dc.subject Dentiscutata heterogama pt_BR
dc.subject Urochloa brizantha pt_BR
dc.subject.classification Cafeicultura::Pragas, doenças e plantas daninhas pt_BR
dc.title Interference by palisade grass on coffee seedlings inoculated with arbuscular mycorrhizal fungi pt_BR
dc.title Interferência de braquiária em mudas de cafeeiro inoculadas com fungos micorrízicos arbusculares pt_BR
dc.type Artigo pt_BR

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