Please use this identifier to cite or link to this item: http://hdl.handle.net/10316/44356
DC FieldValueLanguage
dc.contributor.authorVieira, Joana-
dc.contributor.authorNabais, Cristina-
dc.contributor.authorRossi, Sergio-
dc.contributor.authorCarvalho, Ana-
dc.contributor.authorFreitas, Helena-
dc.contributor.authorCampelo, Filipe-
dc.date.accessioned2017-11-13T18:00:36Z-
dc.date.issued2017-
dc.identifier10.1016/j.agrformet.2017.02.024-
dc.identifier.urihttp://hdl.handle.net/10316/44356-
dc.description.abstractDrought frequency and intensity are expected to increase in the Mediterranean basin with unforeseen impacts on forest ecosystems. In this study, we investigated the effect of a rain exclusion experiment on the growth dynamics of adult maritime pine trees. The rain exclusion experiment took place from March to October 2014. Cambial activity and xylem development was weekly monitored in five treated and five control trees during the 2014 growing season. Although growth started simultaneously in all trees, the number of differentiating xylem cells and the rates of cell production were reduced in the rain exclusion trees. Rain exclusion reduced the number and the lumen diameter of latewood tracheids. Cell wall thickness was not affected by the treatment. After the summer, both groups of trees resumed cambial activity, with rain exclusion trees resuming growth two weeks later. The second period of cambial activity observed in autumn, produced earlywood-like tracheids after latewood formation, the so called intra-annual density fluctuations (IADF). The position of the IADF within latewood differed between groups, being located within and at the end of latewood in control and rain exclusion trees, respectively. These findings demonstrate that the position of IADFs is determined by the timings of cambial reactivation in autumn.por
dc.language.isoengpor
dc.relationinfo:eu-repo/grantAgreement/FCT/COMPETE/134910/PTpor
dc.rightsembargoedAccess-
dc.subjectClimate change experimentspor
dc.subjectfield experimentspor
dc.subjectintra-annual density fluctuationspor
dc.subjectPinus pinasterpor
dc.subjectplant drought stresspor
dc.subjectwood anatomypor
dc.titleRain exclusion affects cambial activity in adult maritime pinespor
dc.typearticle-
degois.publication.firstPage303por
degois.publication.lastPage310por
degois.publication.titleAgricultural and Forest Meteorologypor
dc.relation.publisherversionhttp://www.sciencedirect.com/science/article/pii/S0168192317300679por
dc.peerreviewedyespor
dc.identifier.doi10.1016/j.agrformet.2017.02.024por
degois.publication.volume237-238por
dc.date.embargo2019-11-13T18:00:36Z-
item.fulltextCom Texto completo-
item.languageiso639-1en-
item.grantfulltextopen-
crisitem.author.deptCentre for Functional Ecology-
crisitem.author.deptFaculdade de Ciências e Tecnologia, Universidade de Coimbra-
crisitem.author.parentdeptUniversidade de Coimbra-
crisitem.author.researchunitCentre for Functional Ecology-
crisitem.author.orcid0000-0001-6901-8776-
Appears in Collections:I&D CFE - Artigos em Revistas Internacionais
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