Estimating the total leaf area of the green dwarf coconut tree (Cocos nucifera L.)

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 th...

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Bibliographic Details
Published in:	Scientia agricola Vol. 62; no. 6; pp. 597 - 600
Main Authors:	Sousa, Elias Fernandes de, Araújo, Marilaine Campanati, Posse, Robson Prucoli, Detmann, Edenio, Bernardo, Salassier, Berbert, Pedro Amorim, Santos, Paulo Albernaz dos
Format:	Journal Article
Language:	English
Published:	São Paulo - Escola Superior de Agricultura "Luiz de Queiroz" 01-12-2005 Universidade de São Paulo
Subjects:	AGRICULTURE, MULTIDISCIPLINARY canopy structure estimating model mathematic model modelo matemático estrutura do dossel modelo de estimação mathematic model estimating model canopy structure
Online Access:	Get full text
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Summary:	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 number of leaves in the canopy (NL). The model has satisfactory degree of accuracy for agricultural engineering purposes. A área foliar influencia a transpiração de uma árvore e sua determinação é importante para diversos ramos da ciência. Este trabalho teve como objetivo desenvolver um modelo matemático empírico prático não-destrutivo para estimar a área foliar total do coqueiro anão verde (Cocos nucifera L.) na região Norte Fluminense. Com o modelo desenvolvido pôde-se estimar o valor da área foliar total (TLA) em função da média dos comprimentos das três ultimas raques foliares (LR3) e do número de folhas na copa da cultura (NL). O modelo obtido é satisfatoriamente acurado para estimar a TLA do coqueiro anão verde.
ISSN:	0103-9016 1678-992X 0103-9016 1678-992X
DOI:	10.1590/S0103-90162005000600014