As one of the most important oilcrops, rapeseed was planted 7.0 ×106 hectares in China which took the first place in planting area and yield in rapeseed-yielded countries (Fu, 2000). Recently, consumption of rapeseed oil has been 35% of edible oil and consumption of rapeseed meal has been 25% of plant meal in China (Liao, 2002). Plant oil was consumed about 1.1 ×107t in China in 2003. It will need 2.0 × 107t plant oil to meet consumption of 1.5 billina people in 2020, based on average consumption 13.6 kg pe...