With regard to Brassicaceae used for cultivation purposes, limited information is available on the relation between S and N supply and product quality. A correlation between glucosi- nolate concentration and S supply that is also partly influ- enced by the plant’s N concentration has been reported for colza, mustard, swedes, and kale (Schnug et al., 1995; Kim et al., 2002). Therefore, the aims of this study were (1) to quantify the effect of insufficient and optimal S and N supply on plant growth and glucosinolate concentration and compo- sition in broccoli, (2) to determine the interaction between supply, growth, and quality parameters, and (3) to develop recommendations for crop-management strategies, in order
to produce higher yields of marketable broccoli containing enhanced levels of health-promoting glucosinolates.