Table 6: Estimated critical periods of weed control for two acceptable levels of crop losses in both seasons (off-season 2010 and main season 2010/2011).

Yield loss levels (%)Critical period
Off-season 2010Main season 2010/2011
OnsetEndOnsetEnd

Growing degree daysDays after seedingGrowing degree daysDays after seedingGrowing degree daysDays after seedingGrowing degree daysDays after seeding
51377987491317104453
1045623832404122184743