Fig. 1. Effects of the essential oils of wild oat and crabgrass
on the growth of the (a) shoot, (b) root and (c) plant of
wheat in different growth media.The data are presented as
the means standard error from three independent experiments
with three replications for each determination.
Different letters indicate a significant difference within
each growth medium at P < 0.05 (one-way ANOVA),
followed by Tukey’s Honestly Significantly Difference test.
(),Water; ( ), crabgrass; (), wild oat.
Allelopathy of wild oat and crabgrass 65
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