花粉-胚珠比,Pollen-ovule ratio
pollen/ovule ratio(P/O)花粉胚珠比率
3)pollen-ovule ratios花粉/胚株比
4)unpollinated ovule未授粉胚珠
1.The new sugar beet triploid variety with anther culture-Zhongtian huapei1(original combination code91-5-1),crossed with male homozygous diploid which came from unpollinated ovule of K-5and female tetraploid plant C-87.甜菜花培新品种—中甜花培1号(原组合代号91-5-1)是以K-5的未授粉胚珠培养得到的纯合二倍体株系作父本,与四倍体品系C-87作母本杂交育成的花培三倍体新品种。
2.The regenerated plants of monosomic addition line M14 of sugar beet wasacquired from unpollinated ovules, and then genetic relationship between theregenerated plants and the parental plants was analyzed by performing AFLP, thus themode of reproduction of M14, obligate apomixis or facultative, was identified by meansof molecular biology.利用甜菜单体附加系M14品系未授粉胚珠培养获得再生植株，采用AFLP技术分析再生植株与亲本植株之间的亲缘关系，从而用分子生物学手段鉴定M14品系的生殖方式是专性无融合生殖还是兼性无融合生殖。
5)seed-ovule ratio (S/O)种子-胚珠比
6)Unpollinated ovule culture未授粉胚珠培养
延伸阅读

胚珠分子式：CAS号：性质：即卵（细）胞。出现于形成雌性配子的高等植物（裸子植物和被子植物）的一种结构物，它由一个带有一个或两上包膜的短带所组成，包膜内附有露出由不完全封闭的小孔（珠孔或卵孔）的珠心（孢子体组织的细小物质）。在珠孔末端的单个细胞增大变成大孢子叶，经减数分裂产出大孢子。这种大孢子接着又产生胚胎囊，并产生裸子植物的藏卵器或被子植物功能必珠配子胞核。受精以后，卵细胞成熟形成种子。