2016
DOI: 10.1590/1519-6984.05515
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Regression models for estimating leaf area of seedlings and adult individuals of Neotropical rainforest tree species

Abstract: Individual leaf area (LA) is a key variable in studies of tree ecophysiology because it directly influences light interception, photosynthesis and evapotranspiration of adult trees and seedlings. We analyzed the leaf dimensions (length -L and width -W) of seedlings and adults of seven Neotropical rainforest tree species (Brosimum rubescens, Manilkara maxima, Pouteria caimito, Pouteria torta, Psidium cattleyanum, Symphonia globulifera and Tabebuia stenocalyx) with the objective to test the feasibility of single… Show more

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Cited by 14 publications
(6 citation statements)
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References 26 publications
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“…), no age effect was found on LMA and leaf size, except for M. kilimandscharica. Our findings do not support the common observation of ontogenic changes in leaf traits in other studies, with mature trees from both temperate and tropical biomes having higher LMA and thicker, larger leaves than juvenile trees [83][84][85]. Only our observation of lower LMA in juvenile compared to mature M. kilimandscharica trees is consistent with most previous research, while the larger leaf size in juvenile compared to mature trees of this species were instead opposite to the common observation.…”
Section: Lma and Leaf Size In Juvenile And Mature Trees At Different Elevationscontrasting
confidence: 83%
“…), no age effect was found on LMA and leaf size, except for M. kilimandscharica. Our findings do not support the common observation of ontogenic changes in leaf traits in other studies, with mature trees from both temperate and tropical biomes having higher LMA and thicker, larger leaves than juvenile trees [83][84][85]. Only our observation of lower LMA in juvenile compared to mature M. kilimandscharica trees is consistent with most previous research, while the larger leaf size in juvenile compared to mature trees of this species were instead opposite to the common observation.…”
Section: Lma and Leaf Size In Juvenile And Mature Trees At Different Elevationscontrasting
confidence: 83%
“…Regression methods have been broadly used in estimating the plant leaf area (Brito-Rochaa et al, 2016;Dwyer & Stewart, 1986;Johnson, 1967;Labbafi, Khalaj, Allahdadi, Nadjafi, & Akbari, 2019;Lieth, Reynolds, & Rogers, 1986;Payne, Wendt, Hossner, & Gates, 1991;Ramos, Garcia Del Moral, & Recalde, 1983;Sanchez-de-Miguel et al, 2011;Sharrett & Baker, 1985;Shibayama et al, 2011;Shih, Gascho, & Rahi, 1981;Solaiman, Siddique, Islam, Ismail, & Uddin, 2013).…”
mentioning
confidence: 99%
“…A A partir das análises realizadas, pode-se perceber que a escolha de análise pode levar a conclusões diversas. As comparações baseadas na regressão linear são muito usadas e confiáveis nas comparações de valores medidos e modelados em trabalhos biológicos e agronômicos (Matsunaga et al, 2014;Brito-Rocha et al, 2016), porém não mostram as diferenças em partes de curva, as quais podem se mostrar significativas com uso de outros testes, tais como na análise de teste t pareado de A e Ci. Enquanto os valores de gs e E (interdependentes) não se apresentaram diferenciados entre dois sistemas, a interdependência entre Ci e A foi originada nos cálculos de Ci, pela relação Ci = Ca+A/gs (Long & Bernacchi, 2003).…”
Section: Resultsunclassified