Department of Plant Pathology, C. S. A. Univ. of Agri. & Tech., Kanpur-208002
National Symposium on Strategic Issues in Plant Pathological Research held at Department of Plant Pathology, CSK HP Krishi Vishvavidayalaya, Palampur on November 24–25, 2011
Fusarium wilt (Fusarium oxyspoum f.sp. lycopersici) (Sacc) Hansen and Synder (1940), is one of the serious disease of tomato and the effective management involses use of resistant varieties and use of fungicides. However, host resistance in tomato to this disease is lacking and fungicidal control restricted to economically protected situations only. Therefore, certain defense inducing agents like- IAA, hydrogen peroxide, calcium chloride, ferric chloride, SA, and Di-ammonium potassium hydro phosphate were assessed during the course of present study and their physiological and biochemical activities in tomato were ascertained. Seed dressing with these inducing agents provided good protection to the seed against seed and soil born infection and also stimulated the germination of the seed. The growth promotion effect seed dressing with these inducing agents in tomato seedlings was found to stimulate the growth of the plants and increased of shot length and root length over control-I (untreated healthy) and control-II (pathogen treated), respectively. Treatments with inducers prior to challenge infection sensitized the seedlings to produce increased level of soluble proteins and phenols.
