Rapeseed is one of the four main oil crops worldwide as well as in China,and is of strong adaptability,extensive use,high economic value and great developing potential.At present,the application of modern biotechnology,such as the haploid culture technology,in crop breeding has greatly promoted the combination of good quality,high-yielding and resistance,a lot of new germplasm resources have been developed.Based on previous studies,the optimization on the microspore culture technology of Brassica na...