Data/hora: 09/06/2024 11:55:37

Provedor de dados: 	52	
País: 	Brazil	
Título: 	A method to improve leaf succulence quantification	
Autores: 	Mantovani,André.	
Data: 	1999-01-01	
Ano: 	1999	
Palavras-chave: 	Leaf succulence; Water relations; Leaf anatomy; Araceae; Ecophysiology.	
Resumo: 	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 consideration dry weight and leaf area, showed a high correlation to mesophyll thickness.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89131999000100002	
Editor: 	Instituto de Tecnologia do Paraná - Tecpar	
Relação: 	10.1590/S1516-89131999000100002	
Formato: 	text/html	
Fonte: 	Brazilian Archives of Biology and Technology  v.42 n.1 1999	
Fonte: 	info:eu-repo/semantics/openAccess