Table 5: Mean above-ground tissue nitrogen and phosphorus concentrations by plant species and growth cycle.

PlantGrowth cycle
1st2nd3rd4th5th

Tissue nitrogen (%)
B. tectorum (without competition)2.07A2.27A2.27A3.68AB3.35
B. tectorum (in competition)1.26AB1.50B 4.20A3.86
L. triticoides1.02B1.13BC2.56BC3.58AB
E. wawawai ensis0.97B0.97BC2.13C2.09C
A. hymenoides1.46B0.78C3.34A3.00BC
ANOVA

Tissue phosphorus (mmol kg−1)
B. tectorum (without competition)91.0A110.7A122.8AB112.7AB93.3B
B. tectorum (in competition)ndnd131.6A134.6A129.3A
L. triticoides24.2BC32.9B94.5C84.5BC
E. wawawai ensis18.2C27.8BC67.7D58.2C
A. hymenoides41.2B19.6C99.8BC58.7C
ANOVA

Separate ANOVAs used for each growth cycle. For each column, different superscripted letters denote significant differences. nd: not determined due to lack of sufficient plant tissue for analyses.