It was heartening to see rapeseed mustard being widely cultivated on patches of lands in Giessen Hessen .. Large patches of land earlier lying wastelands near rly tracts between Giessen to Frankfurt were lined with rapeseed mustard crops. This crop is main source of biofuel in Germany . Mustard oil is edible in India and sells around Rs 100 or USD 2,5 per litre. However its different in Germany if they cultivate rapeseed mustard of set aside lands. Let us hope it does not compete with food grains. Choice is getting more and more difficult as the debate of  food vs fuel at least in developing world.  Let us concentrate on not so common plants in not so favourable environments.