Table 5.
Summary of significant effects of isolates from E. alsodes and E. schardlii var. pennsylvanica endophyte species on a host plant, Poa alsodes, growth parameters for North Carolina (NC) and Pennsylvania (PA) populations under specific treatments
| Population/treatment | Ln (total biomass) | Ln (leaf biomass) | Root biomass | Ln (root:shoot) | Height | Ln (number of tillers) |
|---|---|---|---|---|---|---|
| NC/HWHNa | — | — | — | — | E− > S1b p < 0.05c | E− < S2 p < 0.05 |
| NC/HWLN | — | — | — | — | — | — |
| NC/LWHN | — | — | — | A1 < S1 p < 0.05 | — | — |
| NC/LWLN | — | — | — | A1 < S1 p < 0.05 | — | — |
| PA/HWHN | — | — | — | — | — | — |
| PA/HWLN | — | — | A1 < A2 = E− p < 0.001 | A1 < A2 > E− p < 0.01 | A1 > A2 < E− p < 0.01 | — |
| PA/LWHN | A1 = A2 < E− p < 0.01 | A2 < E− p < 0.01 | A1 ≤ E− p = 0.05 | — | A1 = A2 < E− p < 0.01 | — |
| PA/LWLN | A1 < E− p < 0.05 | A1 < E− p < 0.05 | A1 ≤ E− p = 0.05 | — | — | — |
a
Treatments: HWHN—high water high nutrients, LWHN—low water high nutrients, HWLN—high water low nutrients, LWLN—low water low nutrients.
b
Infections: E− uninfected; S1, S2‐ infected with E. schardlii var. pennsylvanica isolates 1 and 2; A1, A2—infected with E. alsodes isolates 1 and 2.
c
There were 11–13 plants randomly assigned per treatment for each symbiotum combination.