Figure 6.

Growth responses of endophyte-free (E−) P. leptocoma seeds, endophyte-symbiotic (E+) P. leptocoma seeds and endophyte-free P. reflexa (P. reflexa E−) seeds. (A) Mean (±s.e.) aboveground biomass of plants harvested in September 2013. (B) Mean (±s.e.) number of live leaves on plants harvested in September 2013. For each growth response, means annotated with different letters significantly differed. Parentheses around a letter indicate a marginally significant difference between that mean and a mean annotated with a different letter.