Haploid technology is also an important biotechnological tool in breeding programs, as well as in genetic and developmental studies. It is significant that the totipotent nature of a haploid cell is exploited in several facets of biological research. In those genotypes where these technologies have been successfully applied, improvement programs receive significant advantages. Worldwide, DH technology has become routine in a wide range of crops, with the largest number of varieties derived from DH from barley, followed by rapeseed2. Haploid techniques can be a valuable tool for the rapid production of homozygous transgenic plants, thus assisting in the establishment of transformation techniques. Additionally, DHs are indispensable in species with inbreeding depression, in perennial woody species with long juvenile periods, and in plants with barriers to self incompatibility and dioecism3.