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http://dx.doi.org/10.5423/PPJ.2006.22.1.090

Dravya-A Putative Organic Treatment Against Alternaria padwickii Infection in Paddy  

Sathyanarayana S. G (Department of Studies of Applied Botany, Seed Pathology and Biotechnology, University of Mysore)
Lokesh S. (Department of Studies of Applied Botany, Seed Pathology and Biotechnology, University of Mysore)
Vasanth Kumar T. (Department of Studies of Applied Botany, Seed Pathology and Biotechnology, University of Mysore)
Shetty H. S. (Department of Studies of Applied Botany, Seed Pathology and Biotechnology, University of Mysore)
Publication Information
The Plant Pathology Journal / v.22, no.1, 2006 , pp. 90-93 More about this Journal
Abstract
Innate defence mechanism in plants can be triggered and enhanced by certain agents, referred as inducers against broad range of pathogens. In the present study, Dravya (a sea weed extract) was highly compatible with commonly available synthetic fungicides, Bavistin and Dithane M-45. Incidence of Alternaria padwickii and Bipolaris oryzae was also reduced to a greater extent in the paddy seed samples in Dravya treatment. Dravya also enhanced the seed germination and seedling vigour. Seedlings of treated samples also showed enhanced activity of peroxidase upon challenge inoculation with Alternaria padwickii. The enzyme activity was two fold high after the inoculation of pathogen. The suppression in disease incidence in growing plants indicated the promising effect of Dravya and Dithane M-45 under green-house condition.
Keywords
Alternaria padwickii; disease suppression; Dravya; weed extract;
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