Fig. 1From: Wild pollinators enhance oilseed rape yield in small-holder farming systems in ChinaPlant yield parameters of oilseed rape plants in closed (C) and open (O) cages. Bars represent SEM. Asterisks show the significance level based on an analysis with mixed models (see Table 2; *≤0.05; **≤0.01; ***<0.001)Back to article page