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三系杂交稻推广以来,每年种植面积近一亿亩,对稻谷增产起到一定作用。杂交稻的育成,经千百次组配和选择而获得的优良因子组合,优势强,增产潜力大。而利用杂交稻的花药离体人工培养,诱导大量花粉植株,自然或人工加倍,从中筛选鉴定具有杂交稻类型的纯合二倍体,丰产性状类似杂交稻,克服了杂交稻繁殖、制种工序,扩大了杂交稻应用的范围。我所自1976年以来,先后利用籼型杂交稻的南优2号、汕优2号、汕优6号、威优6号、红优3号(红410A×661)、菲优(菲改A×圭630)、威优64号(V_(20)A×测64)和粳型杂交稻的辽优(辽秋A×C57)、当优C堡(当选晚2号A×C堡)等九个杂交稻组合
Since the popularization of three-line hybrid rice, the annual planting area has reached nearly 100 million mu, which has played a certain role in the increase of paddy yield. Hybrid rice breeding, after hundreds of times the combination of group selection and good combination of factors, strong advantages, yield potential. The hybrid rice anther culture in vitro, induced a large number of pollen plants, natural or artificial doubling, screening and identification with hybrid rice type homozygous diploid, high yield traits similar to hybrid rice, to overcome the hybrid rice breeding, seed production process , Expanding the scope of hybrid rice applications. Since 1976, we have been using the indica hybrid rice Nan You 2, Shanyou 2, Shanyou 6, Weiyou 6, Hongyou 3 (red 410A × 661) A × Gui 630), Weiyou 64 (V_ (20) A × 64) and Liaoyou A × C57 (Japonica hybrid rice) Nine hybrid rice combinations