Shiboob, M. (2002). CHLOROPHYLL AND CAROTENOID CONTENTS IN TOMATO AND CUCUMBER PLANTS IN RELATION TO DIMETHOATE AND PROFENOFOS APLLICATION. Journal of Plant Protection and Pathology, 27(3), 1853-1861. doi: 10.21608/jppp.2002.253423
M. H. M. Shiboob. "CHLOROPHYLL AND CAROTENOID CONTENTS IN TOMATO AND CUCUMBER PLANTS IN RELATION TO DIMETHOATE AND PROFENOFOS APLLICATION". Journal of Plant Protection and Pathology, 27, 3, 2002, 1853-1861. doi: 10.21608/jppp.2002.253423
Shiboob, M. (2002). 'CHLOROPHYLL AND CAROTENOID CONTENTS IN TOMATO AND CUCUMBER PLANTS IN RELATION TO DIMETHOATE AND PROFENOFOS APLLICATION', Journal of Plant Protection and Pathology, 27(3), pp. 1853-1861. doi: 10.21608/jppp.2002.253423
Shiboob, M. CHLOROPHYLL AND CAROTENOID CONTENTS IN TOMATO AND CUCUMBER PLANTS IN RELATION TO DIMETHOATE AND PROFENOFOS APLLICATION. Journal of Plant Protection and Pathology, 2002; 27(3): 1853-1861. doi: 10.21608/jppp.2002.253423
CHLOROPHYLL AND CAROTENOID CONTENTS IN TOMATO AND CUCUMBER PLANTS IN RELATION TO DIMETHOATE AND PROFENOFOS APLLICATION
Central Laboratory, Faculty of Agriculture (EL-Shatby), University of Alexandria, Alexandria, Egypt.
Abstract
The insecticides, dimethoate and profenofos were sprayed on tomato and cucumber plants at the fruiting stage. Effect of these insecticides by different concentrations (half, one, and twice recommended rates) on chlorophyll “a”,”b”, total and carotenoid contents were determined after different days of spraying. Dimethoate was more effective against chlorophyll “a” of tomato and chlorophyll “b” of cucumber leaves and highly reduced total chlorophyll of both plant leaves. Chlorophyll “b” of tomato and “a” of cucumber was more sensitive to profenofos and total chlorophyll was highly reduced in both plants leaves. Profenofos and dimethoate were more active to reduce carotenoid contents of tomato than cucumber leaves.
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