Figure 1: Influence of weed interference on relative yield of aerobic rice variety AERON 1 in the off-season of 2010 and main season of 2010/2011. Increasing duration of weed interference (●) data fitted to the logistic equation; increasing weed-free period (♦) data fitted to the Gompertz equation. The dots and the lines represent observed relative yield and fitted models, respectively. AYL = accepted yield loss; RY = relative yield.