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Fig. 1. Canonical ordination of phospholipid fatty acid (PLFA) profiles derived from redundancy analysis of absolute peak areas. Percentages on axes are percent of total variation in dataset explained; 99% of the variability that can be attributed to experimental factors is shown by this plot. Symbols represent treatment means and bars are 95% confidence intervals for each treatment (corn line treatments have been pooled). Triangles, UM soil; squares, Salisbury soil; circles, Clarksville soil; white, Bt corn; black, non-Bt corn. PC, principal component.
