水稻籼粳杂交F_1植株育性与花粉育性的关系

Analysis on relationship between F_1 hybrids fertilities and pollen fertilities

摘要: 以广亲和品种轮回 42 2、0 2 42 8分别与籼、粳稻配组及粳 /籼、籼 /粳、粳 /粳配组 ,检测杂种 F1 代的结实率及镜检亲本 F1 代的花粉活性 ,试验结果表明 :除测 49外 ,亲本花粉可育性均较高 ,杂种 F1 代的花粉育性因亲本不同而有所差异 ,以广亲和品种与籼、粳稻配组所得的杂种 F1 代的花粉可育性为最高 ;籼粳杂种 F1代的花粉败育率与植株不结实率的相关系数 (r)达 0 .83 80 .

Abstract: Wide compatibility rice varieties(WCVs) LH422 and 02428, Indica and Japonica rice varieties were used in this test with cross combination types. The seedset values of F 1 hybrids were determined, and the pollen activities of the parent lines and F 1 hybrids were also inspected with microscope. The results showed that the pollen fertilities of the parent lines reached a competitive higher level except those of Ce49, but the pollen fertilities of F 1 hybrids varied according to their parent lines. The po...