枣授粉受精及胚胎发育研究

编号 zgly0000338202

文献类型 期刊论文

文献题名 枣授粉受精及胚胎发育研究

作者 张学英  彭士琪  郭振怀 

作者单位 河北农业大学园艺学院  保定 

母体文献 林业科学 

年卷期 2004,40(5)

页码 210-212,i002

年份 2004 

分类号 S665.1 

关键词 枣  授粉  受精  胚胎发育  育种 

文摘内容 The processes about pollination, fertilization and embryo development of Chinese Date ‘Wu-he-zao' (ziziphus jujuba) were observed by means of lightmicrocope combining histochemical dyeing and fluorescent technique. The results were summarized as follows:The pollen grains germinated on the stigma at the 4th hour after pollination. On the 5th day after pollination,the primary endosperm nucleus formed, and the zygote formed on the 6th day. The double fertilization of Wu-he-zao was the type premitotic syngamy. The first division of the zygote took place after a dormancy for about 6 - 7 days. The proembryonal development of Wu-he-zao belonged to the Solanad type. The development of the endosperm belonged to the nuclear type。