Lethal Temperatures for Nutsedge<BR>Holt and Orcutt (1996): Tuber sprouting inhibited at constant temperatures above 44 C (2 wks).
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<BR>Chase et al. 1999: Objective was to approximate actual field conditions.  45 C delayed nutsedge sprouting, required 50 C for inhibition (2 wks).  Used Cycling Temperatures: 6 Hr. Hot and Cool to 26 C.<BR>