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一、前言杂交水稻培育成功以后,为了简便繁殖制种手续,一些科学工作者曾设想固定杂种优势,有人提出花培固定杂种优势;有人则提出通过无性繁殖固定杂种优势,如杂种稻蔸越冬和利用宿根稻等;还有的提出用无融合生殖固定杂种优势;然而,也有人用培育核质杂种来固定杂种优势。所谓核质杂种,就是将一个体的细胞核成功地代换到另一遗传性不同的个体细胞质里,
I. INTRODUCTION After the success of hybrid rice cultivation, some scientists have envisaged the advantage of fixed hybrids in order to facilitate reproduction and seed production procedures. Some have proposed the advantage of flower hybrids for immobilizing hybrids. Some have suggested that heterosis of hybrid rice plants, such as winter hybrid rice Use of perennial rice, etc .; others suggest the use of apomixing to immobilize heterosis; however, others use nurturing nuclear hybrids to fix heterosis. The so-called nuclear hybrids, is the successful replacement of a body’s nucleus to another genetic different individual cytoplasm,