2005
DOI: 10.1590/s0103-90162005000600014
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Abstract: Leaf area has significant effect on tree transpiration, and its measurement is important to many study areas. This work aimed at developing a non-destructive, practical, and empirical method to estimate the total leaf area of green dwarf coconut palms (Cocos nucifera L.) in plantations located at the northern region of Rio de Janeiro state, Brazil. A mathematical model was developed to estimate total leaf area values (TLA) as function of the average lengths of the last three leaf raquis (LR3), and of the numbe… Show more

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Cited by 19 publications
(7 citation statements)
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References 6 publications
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“…By contrast, the power model based on two leaf dimensions could be used to estimate LA with high precision and accuracy, independently of leaf size. This model was considered the most adequate for estimating LA of other perennial crops like black pepper (Kandiannan et al, 2002), grapevine (Williams & Martinson, 2003) and dwarf coconut tree (Sousa et al, 2005). Differences in leaf shape may occur even within individuals, as found in Salix viminalis (Verwijst & Wen, 1996).…”
Section: Discussionmentioning
confidence: 99%
“…By contrast, the power model based on two leaf dimensions could be used to estimate LA with high precision and accuracy, independently of leaf size. This model was considered the most adequate for estimating LA of other perennial crops like black pepper (Kandiannan et al, 2002), grapevine (Williams & Martinson, 2003) and dwarf coconut tree (Sousa et al, 2005). Differences in leaf shape may occur even within individuals, as found in Salix viminalis (Verwijst & Wen, 1996).…”
Section: Discussionmentioning
confidence: 99%
“…Palms are bulky organisms that do not easily lend themselves to routine evaluation of their total leaf area. Indirect methods have been developed to estimate total leaf area for a few economically important palms, for example Cocos nucifera (De Sousa et al 2005) and Metroxylon sagu (Nakamura et al 2005). The efficiency of leaf area display has been determined for a few understory palms (i.e., Alvarez-Clare and Avalos 2007;Chazdon 1985), but little is known about total leaf area in rainforest canopy palms.…”
Section: Introductionmentioning
confidence: 99%
“…O aumento da disponibilidade de nutrientes para a planta, resultante da calagem, pode ser um fator relacionado com o aumento da área foliar (SANTOS, 2010). A AF é um fator importante que determina a interceptação de luz, portanto, a eficiência da taxa fotossintética e transpiratória das plantas (TAIZ & ZEIGER, 2002), desta maneira a avaliação da AF é significativa para analisar eentender o crescimento vegetativo e a perda de água pela planta (SOUSA et al, 2005).…”
Section: Resultsunclassified