Multigeneric co-aggregation in Azospirllum brasilense AZP18 with other PGPR strains and its inoculation effect on the growth and yield of sunflower(Helianthus annuus"Sunbeam")
= Multigeneric co-aggregation in Azospirllum brasilense AZP18 with other PGPR strains and its inoculation effect on the growth and yield of sunflower(Helianthus annuus"Sunbeam")