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Studies on cambial activity: advances and challenges in the knowledge of growth dynamics of Brazilian woody species 42
CALLADO,CÁTIA H.; VASCONCELLOS,THAÍS J. DE; COSTA,MONIQUE S.; BARROS,CLAUDIA F.; ROIG,FIDEL A.; TOMAZELLO-FILHO,MÁRIO.
The lack of specific research on the sequence of events that determine plant growth from meristem until wood formation represents a gap in the knowledge of growth dynamics in woody species. In this work, we surveyed published studies concerning cambial activity of Brazilian native species aiming at allowing the comparison of applied methods and obtained results. The annual cambial seasonality was observed in all the investigated species. Nevertheless, we found high heterogeneity in the used methodologies. As a result from this analysis, our opinion points to the need for standardizing sampling protocols and for discussing the suitability of experimental designs. This will help to define with greater precision the factors that determine the radial growth in...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Wood formation; Growth rings; Radial growth; Dendrochronology.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000100277
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Occurrence of annual growth rings in Rhizophora mangle in a region with low climate seasonality 42
SOUZA,BRUNNA T.; ESTRADA,GUSTAVO C.D.; SOARES,MÁRIO L.G.; CALLADO,CÁTIA H..
ABSTRACT The formation of annual growth rings has been confirmed for several mangrove species in the last decade, among which is the Rhizophora mangle. However, the record of annual rings for this species was made in a region with high hydric seasonality, a widely recognized induction factor of annual rings in tropical species. In this sense, the present study aimed to verify the occurrence of annual growth rings in R. mangle in the mangroves of Guaratiba (Rio de Janeiro, Southeastern Brazil), a region with low hydric seasonality. For this purpose, the crossdating technique was applied in ten trees collected with known age (seven years). The growth rings are characterized by alternating layers of low vessel density (earlywood) and high vessel density...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Growth rings; Dendrochronology; Mangrove; Dendroecology; Proxy.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000200517
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