The data suggested that biocontrol agents have growthpromoting activities. Enhanced plant growth in addition to disease control has been achieved with Pseudomonas and Bacillus (Whipps 2001; Sharma et al. 2010). Biocontrol of minor pathogens in the rhizosphere, improved nutrient release, mineral uptake from soil and organic matter and enhanced plant hormone production may partially explain the biocontrol mediated growth response (Dumas-Gaudot et al. 1984). Siderophores have been shown to play a role in increased growth response of certain plants along with reduction of plant pathogen (Whipps 2001). There was an increase in the dry matter content, lipids, and proteins in the seed with the application of KA19 and SE. This enhancement of lipids in the seeds influenced by biocontrol agents might be due to them controlling the black rot in comparison to the control. Because of this, the photosynthetic activity of the leaves is expected to enhance and provide precursors for the synthesis of lipids in the seeds. Treatment with biocontrol agents has been shown to increase the content of storage proteins in mustard seeds as also observed in wheat (Biswas et al. 2003) and maize (Shivkumar and Sharma 2003). Induction of systemic induced resistance in tobacco after inoculation with P. tabaci was followed by an increase in the concentration of PR proteins (Tuzun et al. 1989).