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Evaluation Of Chlorosis Development By Numerical ýImage Analysis, In
Phaseolus Vulgaris Leaves ýTreated By Tabtoxin
S. Bouharati,ý(1) D. Harzallah, ý (1)F. Dahbi
(2)and L. Bouamama (3) and Ramzia H.A. Rahman
(1)
(1)Laboratory of Microbioloy, Biology
Department, Faculty of Sciences, Ferhat ýAbbas University, Setif 19000,
Algeria
E-mail:
sbouharati@yahoo.fr
(2) Algerian National Institute of
Agronomical Research. Route des fermes, BP. 08, ýý19000 Setif,
Algeriaý.
(3) Department of Optics, Faculty of Engeneering, Ferhat
Abbas University, Setif ýý19000, Algeria.ý
Abstract
Tabtoxin is a non-specific phytotoxin, produced by Pseudomonas syringae
pv. tabaci and play an important role in the development of disease
symptoms. When applied on bean leaves, it causes chlorotic lesions and reduced
significantly the chlorophyll content. In this study, the development of
chlorosis in Paseolus vulgaris leaves treated by tabtoxin, was evaluated
by Numerical Image Analysis (NIA). This method was compared with classical
evaluation methods (chlorophyll content and visual evaluation of symptoms). The
numerical Image Analysis appeared to be a practical tool for the evaluation of
chorosis development in Phaseolus leaves. |
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