In the study V, the impact of two temperatures (8° or 15°C) and DSE (Phialocephala
fortinii) and AM (Glomus claroideum) inoculations were evaluated on the ecophysiology
and germination of an arcto-alpine plant Gnaphalium norvegicum. Shoot biomass, shoot
nitrogen concentrations (N %) and nitrogen contents (mg plant–1) were determined. The
root fungal colonization percentages were assessed as in the field studies (Chapter 2.2).
The root biomass was not included because sampling for root fungal colonization
assessment made the data inconsistent. At 15°C, the photosynthesis rate (μmol
CO2 m2–1s–1) and specific leaf area (SLA cm2 mg–1) were measured and, finally, the
photosynthetic nutrient use efficiency (PNUE, nmol CO2 mmol N–1 s–1) was determined
(Larcher 1995). Photosynthesis measurements were not conducted at 8°C because the
seedlings were too small for this purpose.
In the study V, the impact of two temperatures (8° or 15°C) and DSE (Phialocephala
fortinii) and AM (Glomus claroideum) inoculations were evaluated on the ecophysiology
and germination of an arcto-alpine plant Gnaphalium norvegicum. Shoot biomass, shoot
nitrogen concentrations (N %) and nitrogen contents (mg plant–1) were determined. The
root fungal colonization percentages were assessed as in the field studies (Chapter 2.2).
The root biomass was not included because sampling for root fungal colonization
assessment made the data inconsistent. At 15°C, the photosynthesis rate (μmol
CO2 m2–1s–1) and specific leaf area (SLA cm2 mg–1) were measured and, finally, the
photosynthetic nutrient use efficiency (PNUE, nmol CO2 mmol N–1 s–1) was determined
(Larcher 1995). Photosynthesis measurements were not conducted at 8°C because the
seedlings were too small for this purpose.
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