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Compression induced intercellular shaping for some geometric cellular lattices BABT
Calbo,Adonai Gimenez; Nery,Amauri Alves.
The wall perimeter fraction, which contact neighboring cells, was named compression ratio (alpha). A zero compression ratio indicates maximum intercellular (air) volume (vG, v/v) and neglectable contact among cells, while alpha=1 indicates complete adherence between neighboring cells and no vG in the lattice. The maximum intercellular air volume (beta, v/v), when alpha=0, was 0.593 for triangular, 0.2146 for square and 0,0931 for hexagonal lattices. The equation alpha=1- (vG/beta)½ was derived to relate alpha, beta and vG in the studied lattices. The relation (P S=p/alpha) between cell turgor (P S) and the tissue aggregating pressure (p), defined as the compression to keep in place a layer of cells, was demonstrated using the compression ratio concept....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Elastic modules; Compression; External force; Intercellular air volume; Ipomea batatas; Pressure chamber.
Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132001000100006
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Evaluation of hydration indexes in kale leaves Braz. J. Plant Physiol.
Calbo,Adonai G.; Ferreira,Marcos D..
Hydration indexes are practical variables for quantifying plant water stress and can be useful for agronomic purposes. Three adapted hydration indexes based on relative water content, volumetric hydration, and leaf turgor pressure were evaluated in kale (Brassica oleracea var. acephala) leaf segments. Relative water content and volumetric hydration were measured in leaf segments after a water infiltration procedure with the aim of filling its large intercellular volumes (@18%v/v). The infiltration was done using a hydrostatic weighing procedure and with the aid of vacuum to fully hydrate the leaf segments. These two relative indexes were proportional to the transpiration-induced leaf water loss. The third index, turgor pressure, was measured with a...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Brassica oleracea; Intercellular air volume; Volumetric hydration; Relative water content; Turgor pressure; Leaf volumetric elastic modules; Wiltmeter.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202011000200006
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Latices celulares moldadas por compressao. Infoteca-e
CALBO, A. G.; NERY, A. A..
Tipo: Folhetos Palavras-chave: Batata-doce; Lamela media; Padrao celular; Volume gasoso intercelular; Camara-de-pressao; External force; Pressure chamber; Intercellular air volume; Elastic modules; Ipomoea Batatas; Sweet potatoes.
Ano: 1999 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/767512
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