作物杂种优势的研究和利用是现代育种学中一个十分活跃、成果显著的重要领域,近年来发展很快,受到国内外的广泛重视。自欧文发现甜菜细胞质雄性不育系以后,引起了甜菜育种工作者的极大兴趣和注意,使甜菜杂交优势利用得到迅速的发展。目前世界各国的甜菜生产上已把雄不育杂交种普遍用于生产,从而使产量和产糖量得到大幅度提高。 Research and utilization of crop heterosis is a very active and significant achievement in modern breeding. It has developed rapidly in recent years and is widely valued at home and abroad. Since the discovery of the sugar beet cytoplasmic male sterility line in Owen, great interest and attention have been paid to sugar beet breeding workers, which has led to the rapid development of the utilization of sugar beet hybrids. At present, male sterile hybrids have been widely used in the production of sugar beet in various countries in the world, so that the yield and the yield of sugar are greatly increased.