籼粳杂种优势早在半个世纪前就被育种者所重视，但由于没有杂交水稻的成功，实现舢粳杂种优势利用是不可能的。当我国籼三系杂交稻正在兴起的时候，有人开始了这方面的工作，袁隆平提出要突破现有杂交水稻产量，其中一条途径就是搞籼粳杂种优势利用，特别是在两系法杂交水稻研 The indica-japonica heterosis was valued by breeders as early as half a century ago, but it is impossible to realize the heterosis utilization of japonica japonica without the success of hybrid rice. When China’s Indica-Three-Line Hybrid Rice is emerging, some people started this work. Yuan Longping proposed to break through the existing output of hybrid rice. One of the ways is to make use of hybridization of indica-japonica hybrid rice, especially in two-line hybrid rice research