Evaluation of digital hemispherical photography and plant canopy analyser for measuring vegetation area index of orange orchards Khabba, S. /Duchemin, Benoît Hadria, R. Er-Raki, S. Ezzahar, J. /Chehbouni, Abdelghani Larouni, A. Hanich, L. INDICE DE VEGETATION INDICE FOLIAIRE CANOPEE IMAGE NUMERIQUE PHOTOINTERPRETATION ETUDE COMPARATIVE METHODE OPTIQUE PHOTOGRAPHIE HEMISPHERIQUE LAI-2000 ORANGERAIE 2009 text https://www.documentation.ird.fr/hor/fdi:010046758 fdi:010046758 Khabba S., Duchemin Benoît, Hadria R., Er-Raki S., Ezzahar J., Chehbouni Abdelghani, Larouni A., Hanich L.. Evaluation of digital hemispherical photography and plant canopy analyser for measuring vegetation area index of orange orchards. 2009, 8, 6 EN MAROC