Includes the nitrogen content (mg) of 30 red clover plants inoculated with one of four single-strain cultures of Rhizobium trifolii or a composite of five Rhizobium meliloti strains, resulting in six treatments in total.
cloverA tibble with 30 rows and 2 columns:
a factor denoting the treatment applied to each plant.
a number denoting the nitrogen content of each plant (milligrams).
Data originally from an experiment by Erdman (1946), conducted in a greenhouse using a completely random design. The current dataset was presented by Steel and Torrie (1980) and later used by Bautista et al. (1997) to illustrate their proposed procedure.
Bautista, M. G., Smith, D. W., & Steiner, R. L. (1997). A Cluster-Based Approach to Means Separation. Journal of Agricultural, Biological, and Environmental Statistics, 2(2), 179-197. tools:::Rd_expr_doi("doi:10.2307/1400402")
Erdman, L. W. (1946). Studies to determine if antibiosis occurs among rhizobia. Journal of the American Society of Agronomy, 38, 251-258. tools:::Rd_expr_doi("doi:10.2134/agronj1946.00021962003800030005x")