Consulta: subjectFacets:"Leaf succulence"
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Data/hora: 09/06/2024 06:08:06

A method to improve leaf succulence quantification
Provedor de dados: Brazilian Archives of Biology and Technology
Autores: Mantovani,André.
Leaf succulence has important physiological and ecological implications. Currently it is quantified by Delf's index (fresh weight/leaf area) and fresh weight/ dry weight ratio. Both indeces are reconsidered and a new index is proposed. Shade and sun leaves from terrestrial, hemiepiphytic and epiphytic aroids were studied. Delf's formula, which does not consider dry weight, overestimated leaf succulence. As fresh weight / dry weight ratio (fw / dw) does not consider leaf area, plants with the same fw / dw ratio were more than five times different in area. The last case was only possible with a decrease in surface / volume ratio and a increase of mesophyll thickness, components not measured by fw / dw ratio. The new index proposed here, which takes into...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Leaf succulence; Water relations; Leaf anatomy; Araceae; Ecophysiology.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89131999000100002