A report on a study conducted to evaluate lettuce and tomato varieties- plant growth promoting rhizobacteria (PGPR) interaction under upland and lowland conditions. Results suggest that With the evident response of certain tomato and lettuce varieties to PGPR inoculation, trials should be conducted at different locations to validate the results of the on-station field evaluation. DR. EVELYN F. DELFIN Crop Science Cluster College of Agriculture University of the Philippines Los Baños