Journal of Biological Control

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Induction of Defense Responses in Blackgram by Trichoderma viride


Affiliations
1 Dept of Plant Pathology, Annamalai University, Annamalai Nagar 608002, Chidambaram, Tamil Nadu, India
 

Induced systemic resistance (ISR) in blackgram using organic amendments and biocontrol agents against Macrophomina phaseolina was studied under pot culture conditions. Soil application of FYM 12t ha-1 combined with seed treatment (4g kg-1) and soil application (5kg ha-1 on 30 DAS) of T. viride significantly increased defense related proteins, viz., peroxidase (14.34 units min-1 g-1) and polyphenoloxidase (3.96 units min-1 g-1) activities as a sign of systemic resistance coupled with reduction in ischolar_main rot incidence from 99.6 to 13.8 per cent and also increased the yield and yield attributes of blackgram.

Keywords

Black Gram, Defense Related Proteins, Macrophomina phaseolina, Trichoderma viride.
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  • Induction of Defense Responses in Blackgram by Trichoderma viride

Abstract Views: 213  |  PDF Views: 110

Authors

S. Usharani
Dept of Plant Pathology, Annamalai University, Annamalai Nagar 608002, Chidambaram, Tamil Nadu, India
D. Johnchristopher
Dept of Plant Pathology, Annamalai University, Annamalai Nagar 608002, Chidambaram, Tamil Nadu, India
R. Udhaya Kumar
Dept of Plant Pathology, Annamalai University, Annamalai Nagar 608002, Chidambaram, Tamil Nadu, India
S. Sanjai Gandhi
Dept of Plant Pathology, Annamalai University, Annamalai Nagar 608002, Chidambaram, Tamil Nadu, India
K. Pratheema
Dept of Plant Pathology, Annamalai University, Annamalai Nagar 608002, Chidambaram, Tamil Nadu, India

Abstract


Induced systemic resistance (ISR) in blackgram using organic amendments and biocontrol agents against Macrophomina phaseolina was studied under pot culture conditions. Soil application of FYM 12t ha-1 combined with seed treatment (4g kg-1) and soil application (5kg ha-1 on 30 DAS) of T. viride significantly increased defense related proteins, viz., peroxidase (14.34 units min-1 g-1) and polyphenoloxidase (3.96 units min-1 g-1) activities as a sign of systemic resistance coupled with reduction in ischolar_main rot incidence from 99.6 to 13.8 per cent and also increased the yield and yield attributes of blackgram.

Keywords


Black Gram, Defense Related Proteins, Macrophomina phaseolina, Trichoderma viride.

References