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ARS Home » Southeast Area » Tifton, Georgia » Crop Protection and Management Research » Research » Publications at this Location » Publication #251331
Title: Reductions in Palmer Amaranth (Amaranthus palmeri) seed viability over time

Author
item SOSNOSKIE, L.M. - University Of Georgia
item Webster, Theodore
item CULPEPPER, A.S. - University Of Georgia

Submitted to: University of Georgia Research Report
Publication Type: Experiment Station
Publication Acceptance Date: 4/1/2010
Publication Date: 5/15/2010
Citation: Sosnoskie, L., Webster, T.M., Culpepper, A. 2010. Reductions in Palmer Amaranth (Amaranthus palmeri) seed viability over time. University of Georgia Research Report. Cotton Research-Extension Report, UGA/CPES Research-Extension Publication. 55-56.

Interpretive Summary:

Technical Abstract: Palmer amaranth plants are likely emerging from relatively shallow depths within the soil profile. Deep tillage event should bury Palmer amaranth seeds to depths below their optimal emergence. Success of this proposed strategy for reducing weed population depends upon seed dormancy and longevity in the soil. It is currently unknown exactly how long Palmer amaranth seed persist once they enter the soil seedbank. Our goal is to develop a successful management program for GLY-R Palmer amaranth in cotton. Results from this study indicate that buried Palmer amaranth seeds will decay rapidly with time and that the seedbank is ephemeral.