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Response of hops to algae-based and nutrient-rich foliar sprays

2021Journal article Open access
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dc.contributor.authorAfonso, Sandra
dc.contributor.authorArrobas, Margarida
dc.contributor.authorRodrigues, M.A.
dc.date.accessioned2021-10-12T15:06:19Z
dc.date.available2021-10-12T15:06:19Z
dc.date.issued2021
dc.description.abstractOver recent years, some hopyards of northeast Portugal have presented poorly developed plants and reduced productivity. In this study, an attempt was made to improve the homogeneity of hop fields and restore their productivity by using plant biostimulants as foliar sprays. The experimental apparatus included four field trials carried out in four plots of different plant vigour, as evaluated by farmers over previous years (weak, fair, good and very good). The experiments were arranged as a factorial of foliar treatment (two plant biostimulants containing extracts of seaweed algae and an untreated control) and year (2017 and 2018). The plot and the year influenced greatly almost all the measured variables related to tissue nutrient concentration and crop performance. In the control plots, cone dry matter (DM) yield varied from 83.3 to 394.4 g plant􀀀1 from the weak to the very good plots. In 2018, cone DM yield was significantly higher than in 2017. The use of foliar sprays influenced less the elemental composition of plant tissue than the plot or the year. The use of foliar sprays only increased significantly crop yield in the plot of weak plant vigour. The foliar treatments did not increase - and -acid concentration in the cones; in the control treatment of the most productive plot, the values were, respectively, 11.2 and 3.9%. Although seaweed extracts tend to help plants cope with several abiotic and biotic stresses, they showed to be effective in mitigating the stress that is affecting these plants, which probably is poor soil drainage caused by the flooding irrigation system, only under conditions of severe stress.pt_PT
dc.description.sponsorshipThe authors are grateful to the Foundation for Science and Technology (FCT, Portugal) for financial support from national funds FCT/MCTES, to CIMO (UIDB/AGR/00690/2020) and for Sandra Afonso’s doctoral scholarship (BD/116593/2016).pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationAfonso, Sandra; Arrobas, Margarida; Rodrigues, M.A. (2021). Response of hops to algae-based and nutrient-rich foliar sprays. Agriculture. ISSN 2077-0472. 11:8, p. 1-15pt_PT
dc.identifier.doi10.3390/agriculture11080798pt_PT
dc.identifier.issn2077-0472
dc.identifier.urihttp://hdl.handle.net/10198/24001
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.relationMountain Research Center
dc.relationProdução de lúpulo nacional: uma estratégia para a sustentabilidade
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectHumulus lupuluspt_PT
dc.subjectPlant biostimulantspt_PT
dc.subjectAscophyllum nodosumpt_PT
dc.subjectTissue nutrient concentrationpt_PT
dc.subjectChlorophyll fluorescencept_PT
dc.subjectCone - and B-acidspt_PT
dc.titleResponse of hops to algae-based and nutrient-rich foliar sprayspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleMountain Research Center
oaire.awardTitleProdução de lúpulo nacional: uma estratégia para a sustentabilidade
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00690%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/POR_NORTE/SFRH%2FBD%2F116593%2F2016/PT
oaire.citation.issue8pt_PT
oaire.citation.startPage798pt_PT
oaire.citation.titleAgriculturept_PT
oaire.citation.volume11pt_PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStreamPOR_NORTE
person.familyNameAfonso
person.familyNameArrobas
person.familyNameRodrigues
person.givenNameSandra
person.givenNameMargarida
person.givenNameManuel Ângelo
person.identifier2791107
person.identifier.ciencia-idEE17-E2A7-CA4D
person.identifier.ciencia-id971C-B85B-1EC0
person.identifier.ciencia-id371D-DF0D-8D68
person.identifier.orcid0000-0002-2464-8464
person.identifier.orcid0000-0002-4652-485X
person.identifier.orcid0000-0002-5367-1129
person.identifier.ridHNC-5440-2023
person.identifier.ridO-1721-2016
person.identifier.scopus-author-id56033752100
person.identifier.scopus-author-id8575728800
person.identifier.scopus-author-id35270106800
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication53395c17-bdda-4f8d-ad73-728075e51889
relation.isAuthorOfPublicationd057ae6b-331c-4980-967d-0ce4fe1bcf8a
relation.isAuthorOfPublication43621353-fa11-4559-9b24-27eba5ad3de0
relation.isAuthorOfPublication.latestForDiscoveryd057ae6b-331c-4980-967d-0ce4fe1bcf8a
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