Gr. Mcpherson, ABSENCE OF INTERACTIONS BETWEEN PERENNIAL BUNCHGRASSES IN A SEMIARID TEMPERATE SAVANNA - A 5-YEAR FIELD EXPERIMENT, Journal of arid environments, 36(4), 1997, pp. 565-570
There is widespread recognition of the importance of long-term experim
ental studies of plant interactions, but such experiments are rarely c
onducted. Pairwise interactions between three species of perennial gra
sses were assessed and described over a 5-year period. Experimental tr
eatments in which some or all neighbors were removed were maintained a
nd plant basal area was monitored throughout the experiment. In additi
on, above-ground biomass was collected over a 3-year period. Repeated-
measures analysis of variance revealed no evidence of interactions bet
ween plants. (C) 1997 Academic Press Limited.