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通过对138个常规品种进行测交筛选,从中寻找并选育出了五个稳定的双低恢复源,从而拓宽了胞质不育恢复基因,改变了恢复系细胞质单一的状况。并对我所原恢复系89133进行品质和丰产性的改良,经过11年的努力,育成了三个具有双低品质性状、丰产性能好、恢复力强、配合力高的恢复系,并以1637A为母本配制了四个双低杂交组合进入预比试验,分别比双低隐性核不育杂种油研七号增产达11.3％—25.7％。在细胞质雄性不育杂种优势利用上取得了较大进展。
Through screening and screening of 138 conventional varieties, five stable double low recovery sources were found and bred, which broadened the gene for cytoplasmic male sterility restoration and changed the single cytoplasmic condition of restorer lines. And my original restorer 89133 for quality and high yield improvement, after 11 years of efforts, bred with three low-quality traits, high yield performance, resilience, with high recovery of the Department, and to 1637A Four double hybrid combinations were prepared for the female parent to enter the pre-ratio test, and the yield was 11.3% -25.7% higher than the double recessive hybrid sterility oil Yan-7. In cytoplasmic male sterility heterosis utilization has made great progress.