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，在二倍体平上选育融和殖种度较大，而在多倍体平筛选融和殖新种已成为融和殖研究新长点。