GROWTH-STIMULATION OF PEA AFTER INOCULATION WITH ASSOCIATIVE BACTERIA

The inoculation of an effective Rhizobium bacterial strain and the ino culation of an associative bacterial strain increased the growth and y ield of pea (Pisum sativum ''Grapis'') in field experiments on differe nt soil types. The diazotrophic bacterial strain Pantoea agglomerans ( D5/23) produces phytohormones in pure culture, stimulates an early inf ection of pea roots with native rhizobia cells and so their nitrogenas e activity. The strain stimulated the root length growth of pea plants and protected simultaneously the young plant roots against fungal pat hogens.