Author:
Sehsah M.E.,El-Baily M.M.,Zaher Abu
Abstract
The aim of the current study was to developed a solar leave area meter to measure leaves area fast and accurate of Guava and Lemon leaves. As well as, validated this method by comparing it with the mechanical planimeter model Placom standard leaf area, image processing method and leaf area meter model (LI-COR, 30000A). This technique is depending on a projected area on the photovoltaic solar panel that change of the produced electric power due to the captured light. The accuracy and precision of this method were compared to that of a digital mechanical drawing planimeter method. The result indicated that the maximum accuracy percent of the area was 99.92 % and 99.60 % for using leaf area meter model (LI-COR, 30000A) and mechanical Planimater method respectively. On the other hand, the maximum accuracy percent of the area was 96.82% and 100% using a developed solar area meter and standard LiR COR instrument respectively.
Publisher
Centre for Evaluation in Education and Science (CEON/CEES)
Reference31 articles.
1. Araújo, E. C. E., Santos, E. P., & Prado, C. H. B. A. 2005. Leaf area estimation of mango (Mangifera indica L.) cvs tommy atkins and haden, using linear dimensions. Revista Brasileira de Fruticultura, 27(2), 308-30. https://doi.org/10.1590/S0100-29452005000200030.;
2. Arias, D.; Calvo-Alvarado J.and Dohrenbusch A. 2007) Calibration of LAI-2000 to estimate leaf area index (LAI) and assessment of its relationship withstand productivity in six native and introduced tree species in Costa Rica. Forest Ecology and Management, v.247, pp.185-193.;
3. Borghezan, M., Gavioli, O., Pit, F. A., & Silva, A. L. 2010. Mathematical models for the estimation of leaf area of grape varieties to the field (Vitis vinifera L.). Ciência e Técnica Vitivinícola, 25(1), 1-7.;
4. Bosco, L. C., Bergamaschi, H., Cardoso, L. S., & Paula, V. A. 2012. Selection of regression models for estimating leaf area of 'royal gala' and 'fuji suprema' apple trees under hail net and in open sky. Revista Brasileira de Fruticultura, 34(2), 504-514. https://doi.org/10.1590/S0100 29452012000200024;
5. Bréda, N. J. J. 2003. Ground-based measurements of leaf area index: a review of methods, instruments and current controversies. Journal of Experimental Botany, v.54, pp.2403-2417.;