摘要： The presence of facultative apomixis In line 296B was proved by the embryologicalstudy.The twin embryosacs were observed at florescence.The autonomous development of em-bryo was confirmed by multiple cell proembryo existing with undeveloped polar nuclei In one embryosac.Cell structure and size of apomictic proembryo were different from sexual proembryo.The structural feature of proembryo can be used to distinguish apomictic proembryo with devel-oped endosperm from sexual embryo.The apomictic development in this line is attributed toaposporous type.The frequency of apomixis Is at least 16—21%.The apomictic characters andthe potential for fixing heterosis in line 296B was dlscussed in the present paper.
关键词:
Sorghum bicolor(L.)Moench,
apomixis,
aposporous,
296B
吴树彪, 韩雪梅, 王景雪, 尚勇进, 张福耀, 孟存刚, 阎喜梅, 牛天堂. Apomictic symptoms in the aspect of embryology in a sorghum line 296B[J]. 华北农学报, 1993, 8(S2): 10-15. doi: 10.7668/hbnxb.1993.S2.002.
Wu Shubiao, Han Xuemei, Wang Jingxue, Shang Yongjin, Zhang Fuyao, Meng Cungang, Yan Ximei, Niu Tiantang. [J]. ACTA AGRICULTURAE BOREALI-SINICA, 1993, 8(S2): 10-15. doi: 10.7668/hbnxb.1993.S2.002.