Journal of Biological Control

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Effect of Certain Soil-Insecticides on In Vitro Growth, Sporulation and Cellulase Production by Trichoderma harzianum Rifai


Affiliations
1 Plant Pathology Department, Annamalai University, Annamalai Nagar 608 002, Tamil Nadu, India
 

Three commonly used soil insecticides viz., BHC, phorate and carbofuran meant for the control of soil borne pests were studied for their in vitro influence on the growth, sporulation and cellulase production by Trichoderma harzianum. The insecticides were tested at 5, 10,50, 100 and 500 ppm concentrations. Among the insecticides, phorate and carbofuran caused maximum reduction of mycelial biomass. Sporulation was strongly inhibited by BHC when compared to other insecticides. The production of cellulases was drastically reduced by incorporation of  phorate.


Keywords

Cellulase Production, In Vitro Growth, Soil-Insecticides, Sporulation, Trichoderma harzianum.
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  • Effect of Certain Soil-Insecticides on In Vitro Growth, Sporulation and Cellulase Production by Trichoderma harzianum Rifai

Abstract Views: 210  |  PDF Views: 120

Authors

J. Jayaraj
Plant Pathology Department, Annamalai University, Annamalai Nagar 608 002, Tamil Nadu, India
R. Ramabadran
Plant Pathology Department, Annamalai University, Annamalai Nagar 608 002, Tamil Nadu, India

Abstract


Three commonly used soil insecticides viz., BHC, phorate and carbofuran meant for the control of soil borne pests were studied for their in vitro influence on the growth, sporulation and cellulase production by Trichoderma harzianum. The insecticides were tested at 5, 10,50, 100 and 500 ppm concentrations. Among the insecticides, phorate and carbofuran caused maximum reduction of mycelial biomass. Sporulation was strongly inhibited by BHC when compared to other insecticides. The production of cellulases was drastically reduced by incorporation of  phorate.


Keywords


Cellulase Production, In Vitro Growth, Soil-Insecticides, Sporulation, Trichoderma harzianum.