40
Fig. 6.8 Mean Prosopis glandulosa total dry mass per plant from three root excluders of different
lengths. Root mass was extracted from 40 cm deep soil cores from an experimental B. curtipendula
grassland. Lengths of the 10 cm diameter PVC root excluders were 2, 20, and 40 cm. One-way
ANOVA for belowground dry mass was signifi cant ( P < 0.05)
Fig. 6.9 Total Prosopis glandulosa dry mass was harvested from four different conditions or treatments. The woody plant was grown in an experimental (planted) B. curtipendula grassland or gaps
(no grass plants), where light levels were adjusted to low light (50 % shading ) or high light ( no
shading ) treatments and with high belowground grass dry mass (2 cm root excluders) or low grass
root mass (40 cm root excluders). Two-way ANOVA for dry mass was signifi cant ( P < 0.05) with a
signifi cant location by treatment interaction ( P < 0.0001)
6 Competition
Fig. 6.8 Mean Prosopis glandulosa total dry mass per plant from three root excluders of different
lengths. Root mass was extracted from 40 cm deep soil cores from an experimental B. curtipendula
grassland. Lengths of the 10 cm diameter PVC root excluders were 2, 20, and 40 cm. One-way
ANOVA for belowground dry mass was signifi cant ( P < 0.05)
Fig. 6.9 Total Prosopis glandulosa dry mass was harvested from four different conditions or treatments. The woody plant was grown in an experimental (planted) B. curtipendula grassland or gaps
(no grass plants), where light levels were adjusted to low light (50 % shading ) or high light ( no
shading ) treatments and with high belowground grass dry mass (2 cm root excluders) or low grass
root mass (40 cm root excluders). Two-way ANOVA for dry mass was signifi cant ( P < 0.05) with a
signifi cant location by treatment interaction ( P < 0.0001)
6 Competition