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Photosynthesis of Fuji' apple trees protected by two anti-hail nets

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dc.contributor.authorCorreia, Carlos M.
dc.contributor.authorSilva, Ermelinda
dc.contributor.authorBrito, Cátia
dc.contributor.authorPinto, Luís
dc.contributor.authorFerreira, Helena
dc.contributor.authorLuzio, Ana
dc.contributor.authorDinis, Lia Tânia
dc.contributor.authorMoutinho-Pereira, José
dc.contributor.authorRodrigues, M.A.
dc.contributor.authorGonçalves, Alexandre
dc.date.accessioned2018-02-05T16:27:04Z
dc.date.available2018-02-05T16:27:04Z
dc.date.issued2017
dc.description.abstractThe occurence of hail events represents a serious socioeconomic concern for agriculture in several regions ofthe Iberian Península, and theirfrequency and severity may increase in the future in the context of climate change. Given this potential risk, important apple-growing áreas usually subjected to hail storms, as Carrazeda de Ansiães in NE Portugal, will likely need to implement adaptation strategies to minimise potential damages. One technological option is to use over-tree netting to protect fruits and trees from extreme conditions. Moreover, anti-hail nets can also provide additional benefits by reducing plant stress, sunburn and wind speed. The study shows the effects oftwo (grey and black) anti-hail nets applied in mid-July 2016 on leaf gás exchange and chlorophyll fluorescence of apple tree [Malus domestica Borkh. cv. Fuji) at different times between July 22 and September 12. The grey (GAH) and black (BAH) anti-hails nets reduced mean incident photosynthetically active radiation during the leaf gás exchange measurements periods by 12 and 23%, respectively. Although it reduced the incident solar radiation, the BAH net contributed to the improvement of net photosynthetic rate (A) during the summer season, namely during the afternoon period, reducing the degree of photosynthesis depression from the morning to the afternoon. Meanwhile, the plants under the GAH presented higher A than open sky (OS) plants in September, reaching similar values to BAH plants. A closely association was observed between photosynthesis and stomatal conductance, although non-stomatal limitations to photosynthesis, that include changes in photochemical reactions, also occur in OS plants, namely in September. Thus, the use of anti-hail nets on orchards seems to be a suitable solution for the protection of apple trees against hail ensuring lower limitations to photosynthetic activity. Further work is needed to validate these results.pt_PT
dc.description.sponsorshipThis work was funded by the project PA 54824 (IF 0034), funded by the European Agricultural Fund for Rural Development and the Portuguese state underthe measure 4. 1- Cooperation forthe Innovation - Rural Development Program (PRODER).pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationCorreia, Carlos; Silva, Ermelinda; Brito, Cátia; Pinto, Luís; Ferreira, Helena; Luzia, A.; Dinis, L.; Moutinho-Pereira, José; Rodrigues, M.A.; Gonçalves, Alexandre (2017). Photosynthesis of Fuji' apple trees protected by two anti-hail nets. In VIII Congresso Ibérico de Ciências Hortícolas. Coimbra. ISBN 978-972-8936-27-3pt_PT
dc.identifier.issn978-972-8936-27-3
dc.identifier.urihttp://hdl.handle.net/10198/15549
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectClimate changept_PT
dc.subjectChlorophyll fluorescencept_PT
dc.subjectGas exchangept_PT
dc.subjectMalus domesticapt_PT
dc.titlePhotosynthesis of Fuji' apple trees protected by two anti-hail netspt_PT
dc.typeconference object
dspace.entity.typePublication
oaire.citation.conferencePlaceCoimbrapt_PT
oaire.citation.endPage143pt_PT
oaire.citation.startPage143pt_PT
oaire.citation.titleVIII Congresso Ibérico de Ciências Hortícolaspt_PT
person.familyNameRodrigues
person.givenNameManuel Ângelo
person.identifier.ciencia-id371D-DF0D-8D68
person.identifier.orcid0000-0002-5367-1129
person.identifier.ridO-1721-2016
person.identifier.scopus-author-id35270106800
rcaap.rightsopenAccesspt_PT
rcaap.typeconferenceObjectpt_PT
relation.isAuthorOfPublication43621353-fa11-4559-9b24-27eba5ad3de0
relation.isAuthorOfPublication.latestForDiscovery43621353-fa11-4559-9b24-27eba5ad3de0

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