以扬稻6号、明恢63、特青3个著名恢复系与广占63-4S、培矮64S、粤泰A等3个具有代表性的不育系配制杂交组合,研究扬稻6号作为骨干恢复系的配组优势。结果表明:扬稻6号与明恢63、特青相比,配制的组合具有明显的生物产量优势和经济产量优势;顶3叶叶姿挺拔,基部节间坚实,抗倒力强;高效叶面积率高;具有高根系活性和光合生产能力。并讨论了扬稻6号在杂种优势上的利用价值。 The hybrid combinations were prepared from three well-known restorer lines of Yangdao 6, Minghui 63 and Teqing, and 3 representative sterile lines including 63-4S, Pei’ai 64S and Yuetai A, As a backbone recovery line with the group advantage. The results showed that the combination of Yangdao 6 with Minghui 63 and Teqing had obvious advantages of biomass yield and economic yield. The top three leaves were tall and straight, Area rate is high; with high root activity and photosynthetic production capacity. The utilization value of Yangdao 6 in heterosis was also discussed.