Abstract:

Two cross between sesame cultivars ‘Zhongzhi 14’ and its wild species ‘Gangguo’ and ‘Yezhi 1’ were studied. The results indicated that: we could obtain a few of seeds. The seedy ratio between ‘Zhongzhi 14’ and ‘Gangguo’ was 2.16%, the average of seeds per capsule was 0.85 seeds. The seedy ratio between ‘Gangguo’ and ‘Zhongzhi 14’ was 95.14%, the average of seeds per capsule was 2.16 seeds. In addition, the seedy ratio between ‘Zhongzhi 14’ and ‘Yezhi 1’ was 8.21%, the average of seeds per capsule was 0.51 seeds. The seedy ratio between ‘Yezhi 1’ and ‘Zhongzhi 14’ was 0.79%, the average of seeds per capsule was 5.43 seeds. Then planted F1 next year, and compared F1 with their parents, we could found that the configuration of F1 was almost the same as their mothers. So it was difficult to obtain true hybrid seed using artificial hybridization method.