Allometric models for estimating leaf area of hose by non destructive method.
Silva S. F. da, Cabanez P. A., Mendonça R. F. de, Pereira L. R., Amaral J. A. T. do
Author Affiliation: Centro de Ciências Agrárias, Programa de Pós-Graduação em Produção Vegetal, Universidade Federal do Espírito Santo, Alegre, ES, Brazil.
Agro@mbiente On-line 9 : 86-90
Abstract : Leaf area is one of the most important measures for evaluating the vegetative growth, and that their knowledge allows estimating water loss through transpiration, due to the leaves being the main organ responsible for gas exchange between the plant and the environment, making it important to its study. Thus, we intended to test this work and get the best mathematical model to estimate leaf area of mango (Mangifera indica L.) cv. Haden according to their dimensions Allometric. We used a greengrocer located in São Domingos property in the municipality of Alegre, southern Espírito Santo, which was collected 80 sheets of 20 hoses in October 2013. The regressions were determined considering the actual leaf area as the dependent variable and the length (L), width (W) and the product of the linear dimensions (L × W) of each sheet as independent variables. Based on these results, we conclude that the polynomial equation y=4.7677+0.6934x -0.0001x2 was the best mathematical model to estimate the leaf area of the hose, with R2 of 0.97. Models using the product L × W are best suited to estimate the leaf area of the hose, since the highest correlation.