Integrating Selective Herbicide and Native Plant Restoration to Control Alternanthera philoxeroides (Alligator Weed) Page: 22
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two herbicide application level (23.660cm + 15.893), but did not differ significantly between
zero (175.67cm + 15.893) and one application (120.85cm + 15.893) (Figure 13). A.
philoxeroides mean shoot/root dry weight ratio was significantly lower at the two herbicide
application level (0.1486 + 0.035), but did not differ significantly between zero (0.461 + 0.035)
and one application (0.4522 + 0.035) (Figure 14). Shoot/root dry weight ratio was the only
measured response affected by a treatment other than herbicide application (Figure 11).
Introduction of competitor species influenced A. philoxeroides mean shoot weight/ root dry
weight ratio (Table 4). Of introduced competitors, Justicia sp was the only plant that
significantly reduced A. philoxeroides shoot/root dry weight ratio lower than control (Figure 15).
Figure 10. Greenhouse treatment containers on day of harvest.
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Adams, Justin. Integrating Selective Herbicide and Native Plant Restoration to Control Alternanthera philoxeroides (Alligator Weed), thesis, December 2011; Denton, Texas. (digital.library.unt.edu/ark:/67531/metadc103280/m1/29/: accessed February 28, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .