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Olive tree response to potassium application under different water regimes and cultivars

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dc.contributor.authorRodrigues, M.A.
dc.contributor.authorFerreira, Isabel Q.
dc.contributor.authorMoutinho-Pereira, José
dc.contributor.authorCorreia, Carlos M.
dc.contributor.authorArrobas, Margarida
dc.date.accessioned2019-01-09T16:21:37Z
dc.date.available2019-01-09T16:21:37Z
dc.date.issued2018
dc.description.abstractTaking into account the role of potassium in plant nutrition it is poorly understood the lack of studies on olive tree response to potassium application. This paper reports the results of two field trials and two pot experiments on potassium fertilization in olive carried out from 2013 to 2017. The two field trials and one of the pot experiments were classic experiments on the plant response to the nutrient application. The second pot experiment was arranged in a factorial design with two leveis of potassium, two water regimes and two cultivars ('Cobrançosa' and 'Arbequina'). The application of potassium did not increase the growth and yield of the trees although it increased the concentration of the nutrient in the tissues. The application of potassium increased the shoot/root ratio. The potassium concentration in the roots was lower than in the aerial parts for low leveis of potassium in the soil but increased more than proportionally in the root relative to the shoot as the availability of potassium in the soil increased. These results seem to indicate that the shoots are a priority sink for K and that the roots can act as a reservoir when the soil K availability is high. lndices of plant water status and chlorophyll a fluorescence parameters were not significantly affected by K applications. Plants suffering from water stress, confirmed by índices of leaf water status and chlorophyll a fluorescence parameters, yielded less phytomass. 'Cobrançosa' appeared as a more tolerant cv. to water stress than 'Arbequina; being the former more suitable to be grown under rainfed conditions and probably more adapted to climate change.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationRodrigues, M.A.; Ferreira, Isabel Q.; Moutinho-Pereira, José; Correia, Carlos; Arrobas, Margarida (2018). Olive tree response to potassium application under different water regimes and cultivars. In 6th International Conference on Olive Tree and Olive Products. Sevilha, Espanhapt_PT
dc.identifier.urihttp://hdl.handle.net/10198/18381
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectOlive treept_PT
dc.subjectPotassiumpt_PT
dc.titleOlive tree response to potassium application under different water regimes and cultivarspt_PT
dc.typeconference object
dspace.entity.typePublication
oaire.citation.conferencePlaceSevilha, Espanhapt_PT
oaire.citation.endPage120pt_PT
oaire.citation.startPage120pt_PT
oaire.citation.titleAbstracts of poster communications, Olivebioteq’18pt_PT
person.familyNameRodrigues
person.familyNameArrobas
person.givenNameManuel Ângelo
person.givenNameMargarida
person.identifier.ciencia-id371D-DF0D-8D68
person.identifier.ciencia-id971C-B85B-1EC0
person.identifier.orcid0000-0002-5367-1129
person.identifier.orcid0000-0002-4652-485X
person.identifier.ridO-1721-2016
person.identifier.scopus-author-id35270106800
person.identifier.scopus-author-id8575728800
rcaap.rightsopenAccesspt_PT
rcaap.typeconferenceObjectpt_PT
relation.isAuthorOfPublication43621353-fa11-4559-9b24-27eba5ad3de0
relation.isAuthorOfPublicationd057ae6b-331c-4980-967d-0ce4fe1bcf8a
relation.isAuthorOfPublication.latestForDiscovery43621353-fa11-4559-9b24-27eba5ad3de0

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