The objective is to optimise financial return to the seed grower by saving the maximum amount of seed at the highest possible quality standards. It is possible to always achieve the highest grades by dressing* a line very hard and discarding a large proportion of the sample, with a loss of potential value to the grower. It is also possible to take out too little of the empty seed and weeds, with a consequential loss of value to the grower which may equal that of the first instance. The trick is'to achieve a balance wherein all possible good seed is saved while the required standards for that type of seed are still met.
