Research Article

Suppression of Bromus tectorum L. by Established Perennial Grasses: Potential Mechanisms—Part One

Table 3

Mean above-ground biomass (g) by plant species and growth cycle.

PlantGrowth cycle
1st2nd3rd4th5th

B. tectorum (without competition)11.11A1.79 D0.56B7.56A6.52A
L.  triticoides 4.24C2.92C0.91AB5.06A
B. tectorum (in competition between L. triticoides)0.006D0.012E0.016B0.191B2.47B
E.   3.27 C5.70A1.56A7.16A
B. tectorum (in competition between E. )0.004D0.004E0.010B0.137B1.86B
A.  hymenoides 8.31B4.18B0.81AB6.37A
B. tectorum (in competition between A. hymenoides)0.038D0.0450.108B0.422B2.92B
ANOVA

Separate ANOVAs used for each growth cycle. For each column, different superscripted letters denote significant differences.