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一系法,即培育不分离的F1杂种,将杂种优势固定下来,从而不需要年年制种,这是利用杂种优势的最好方式。赵世绪(1977年)和袁隆平(1987年)等专家相继提出用无融合生殖的原理固定水稻杂交优势的设想,一些科研单位和大专院校对水稻无融合生殖进行了不少研究,但发展不大,目前仅作为一种探索性研究。
A system of fostering non-segregating F1 hybrids, which secures the heterosis and eliminates the need for annual seed production, is the best way to exploit heterosis. Zhao Shixu (1977) and Yuan Longping (1987) and other experts have put forward the idea of using the principle of apomix to fix the advantages of hybridization in rice. Some research institutes and universities have done a lot of researches on apomixis but have not developed much , Currently only as an exploratory study.