The research on space mutation breeding of grass in China

Space mutation breeding has been considered as a new breeding method both at home and abroad. The summary introduced the definition and characteristic of plant space mutation breeding. Plant generated genetic mutation under compound effects of space mutation factors such as the strong radiation, microgravity and high vacuum. Screening and identification of useful characters could lead to a new variety. The summary discussed selfadvantages of space mutation breeding of grass and great potential of space mutation breeding in forage breeding. Finally, the research progress and problems of grass space mutation breeding in China were summarized