Suppression of Fungal Pathogens and Growth Promotion of Carnation (Dianthus Caryophyllus CV. Sunrise) by Fluorescent Psevdomonas

An attempts were made to characterize rhizobacteria Pseudomonas species for direct and indirect PGP activities so as to select and develop more efficient indigenous POPR strains specific to soil type and to plant type. Twenty bacterial isolates were isolated from rhizosphere of carnation, out of which nine isolates were screened out for the production of multiple PGP activities and disease suppressing activities. Maximum isolates have shown the production of siderophore, ammonia, phosphate solubilization, proteolytic activities and significant production of plant growth regulators i.e., auxins, gibberellins and cytokinin. By RAPD profile strains were found different among themselves. Among them two strains i.e., MC, PS-II, were found to be best for the production of PGP activities and they were selected for field experiment. Significant increase in various growth parameters of plant were recorded.