Abstract : It is difficulty to select and breed apomictic germplasm among diploid rices at present, but it has become a hotspot to select and breed apomictic germplasm among polyploid rices.

摘要 ： 目前，在二倍体水平上选育水稻无质的难度较大，而在多倍体水平筛选水稻无新质已成为水稻无研究新的长点。