Table 2: for percent reduction in height and dry weight of 15 Palmer amaranth accessions 30 days after emergencea.

Treatment factorsHeightDry weight

Individual Palmer amaranth accessionsb

Drought stress<0.0001<0.0001
Accession × drought stress0.0173<0.0001
Coefficient of variation (%)10582

Palmer amaranth accessions grouped by response to herbicidec

Accession group0.07330.0060
Drought stress<0.0001<0.0001
Accession group × drought stress0.68920.3886
Coefficient of variation (%)10887

aData are pooled over experiments.
bConsists of fifteen Palmer amaranth accessions.
cConsists of a group of 5 acetolactate synthase-inhibitor susceptible and glyphosate-susceptible (ALSS/GS), a group of 5 acetolactate synthase inhibitor-resistant (ALSR), and a group of 5 glyphosate-resistant (GR) Palmer amaranth accessions.