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Nitrogen fertilization effect on olive leaf spot and olive anthracnose incidence in the olive tree

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dc.contributor.authorCoelho, Valentim
dc.contributor.authorGouveia, Maria Eugénia
dc.contributor.authorArrobas, Margarida
dc.contributor.authorRaimundo, Soraia
dc.contributor.authorCorreia, Carlos M.
dc.contributor.authorBento, Albino
dc.contributor.authorRodrigues, M.A.
dc.date.accessioned2020-01-17T10:45:12Z
dc.date.available2020-01-17T10:45:12Z
dc.date.issued2019
dc.description.abstractNitrogen has a great influence on the canopy development of growing plants and on the composition of plant tissues. Nitrogen fertilization is often associated with increased susceptibility of plants to pests and diseases, and rational fertilization is usually reclaimed as a cultural measure to mitigate their effects. Two field trials were conducted in rainfed olive groves during the years 2017 and 2018, one of the cultivar Madural and the other of cv. Cobrançosa. Three (0, 40 and 120 kg N ha-1) and four (0, 20, 40 and 120 kg N ha-1) nitrogen rates were tested, respectively in 'Cobrançosa') and 'Madural'. In the leaves, the level of incidence of the olive leaf spot (Spilocaea oleagina (Cast.) Hugh.) was visually assessed and after the leaves had been incubated with NaOH (5%). The presence of diseases in the fruit, such as anthracnose (Gloeosporium olivarum Alm.) were also recorded. Olive leaf spot appeared with relatively high incidence in 'Cobrançosa' in 2017 (8.0 to 54.0%) and 2018 (14.0 to 44.7%) and in Madural in 2018 (24.5 to 36.9%), but not related to nitrogen fertilization. Olive anthracnose was relatively high in 2017 in 'Madural' (8.7 to 15.3%) and 'Cobrançoa' (9.7 to 31.3%) and relatively low in 2018 in 'Madural' (2.0 to 8.0%) and Cobrançosa (0.7 to 4.7%), but also unrelated to nitrogen fertilization. These results suggest a reduced influence of nitrogen fertilization on the incidence of olive leaf spot and olive anthracnose, although the high experimental variability suggests that other causes are still to be sought.pt_PT
dc.description.sponsorshipproject “BioSave: Promoção do potencial económico e da sustentabilidade dos setores do azeite e da castanha “Concurso nº 02/SAICT/2016”, projeto nº 023721.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationCoelho, Valentim; Gouveia, Maria Eugénia; Arrobas, Margarida; Raimundo, Soraia; Correia, Carlos M.; Bento, Albino; Rodrigues, M.A. (2019). Nitrogen fertilization effect on olive leaf spot and olive anthracnose incidence in the olive tree. In VI Jornada Nacional del Grupo de Olivicultura de la SECH. Madrid. ISBN 978-84-948550-6-1pt_PT
dc.identifier.isbn978-84-948550-6-1
dc.identifier.urihttp://hdl.handle.net/10198/20415
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherSociedad Española de Ciencias Hortícolaspt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/pt_PT
dc.subjectOlea europaeapt_PT
dc.subjectSpilocaea oleaginapt_PT
dc.subjectGloeosporium olivarumpt_PT
dc.subjectTradicional olive grovespt_PT
dc.subjectRainfed olive grovespt_PT
dc.titleNitrogen fertilization effect on olive leaf spot and olive anthracnose incidence in the olive treept_PT
dc.typeconference object
dspace.entity.typePublication
oaire.citation.conferencePlaceMadridpt_PT
oaire.citation.endPage66pt_PT
oaire.citation.startPage66pt_PT
oaire.citation.titleVI JORNADA NACIONAL DEL GRUPO DEOLIVICULTURA DE LA SECHpt_PT
person.familyNameCoelho
person.familyNameGouveia
person.familyNameArrobas
person.familyNameRaimundo
person.familyNameBento
person.familyNameRodrigues
person.givenNameValentim
person.givenNameMaria Eugénia
person.givenNameMargarida
person.givenNameSoraia
person.givenNameAlbino
person.givenNameManuel Ângelo
person.identifier.ciencia-id0618-49BC-EACE
person.identifier.ciencia-id971C-B85B-1EC0
person.identifier.ciencia-id0C14-0903-C34B
person.identifier.ciencia-idD516-325A-9AD7
person.identifier.ciencia-id371D-DF0D-8D68
person.identifier.orcid0000-0001-5829-7669
person.identifier.orcid0000-0002-2550-9108
person.identifier.orcid0000-0002-4652-485X
person.identifier.orcid0000-0002-6505-1445
person.identifier.orcid0000-0001-5215-785X
person.identifier.orcid0000-0002-5367-1129
person.identifier.ridN-9706-2016
person.identifier.ridO-1721-2016
person.identifier.scopus-author-id26533798200
person.identifier.scopus-author-id8575728800
person.identifier.scopus-author-id35247694000
person.identifier.scopus-author-id35270106800
rcaap.rightsopenAccesspt_PT
rcaap.typeconferenceObjectpt_PT
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