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Effect of rosette size, clonality and spatial distribution on the reproduction of Vriesea carinata (Bromeliaceae) in the Atlantic Forest of Paraná, southern Brazil Acta Botanica
Silva,Marcelo Aparecido de Souza; Varassin,Isabela Galarda.
ABSTRACT Plant size and clonality are important traits for explaining the reproductive effort of clonal plants. Larger plants can invest more resources into reproduction, and clonality is known to increase reproductive effort. Moreover, reproductive effort is influenced by environmental variation, and so the spatial distribution of plants may affect plant reproductive effort. We investigated the effect of plant size, clonality and spatial distribution on the reproductive effort of Vriesea carinata in the Atlantic Forest in the state of Paraná, Brazil. We marked twenty individual plants and measured their rosette size, biomass and number, as well as rosette reproductive effort (number of flowers, fruits and seeds). We also evaluated the relationship between...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Clonal growth; Morphological variation; Reproductive effort; RNSM; Vriesea.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062016000300401
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Growth of clonal modules on Agropyron michnoi in the Songnen Plain of Northeast China Phyton
Zhang,J; Zhou,C; Yang,YF.
Spatial expansion of clonal plants and growth of their modules are of concern in the field of plant ecology. After measuring a large number of samples, we analyzed the module components and the growth patterns of vegetatively propagated Agropyron michnoi clones in the Songnen Plain on Northeast China. The results showed that the plasticity of clonal growth was large; the coefficients of variation of both extensive areas and the quantitative characters of modules were more than 20%. The numbers of ramets, seedlings, and buds and the cumulative length of the rhizomes showed exponentially and linearly increasing patterns with increases of the area and the total number of modules. The biomass of each module, total number of modules and total biomass showed an...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Agropyron michnoi; Clonal growth; Vegetative propagation; Number of modules; Biomass.
Ano: 2015 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-56572015000200021
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Vegetative propagation strategies of four rupestrian species of Leiothrix (Eriocaulaceae) Rev. Bras. Bot.
Coelho,Flávia de Freitas; Capelo,Christina Dorvalina Lopes; Neves,Ana Carolina Oliveira; Figueira,José Eugênio Côrtes.
Leiothrix is endemic of South America and includes 37 species, 25 of which occur in the state of Minas Gerais. Nineteen of those occur in the "Serra do Cipó", a mountain chain, located in the southern portion of the Espinhaço mountain range. This study examines vegetative propagation strategies of four species of Leiothrix, endemic to the Minas Gerais portion of the Espinhaço mountain range. For each species we established permanent plots, where we marked 30 to 51 rosettes or clones, and then took morphological and phenological measurements. Leiothrix crassifolia (Bong.) Ruhland and L. curvifolia var. lanuginosa (Bong.) Ruhland are rhizomatous, forming compact clones. Leiothrix vivipara (Bong.) Ruhland does not produce rhizomes, but is pseudoviviparous,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Clonal growth; Eriocaulaceae; Leiothrix; Pseudovivipary; Rupestrian grasslands.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042007000400013
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