【摘要】 ①巴旦杏雌蕊形态结构为：湿型柱头，花柱实心，子房１室，基生胎座，横生胚珠，双珠被，厚珠心，有珠孔塞。②巴旦杏存在明显的雌雄蕊异熟现象：花粉授粉后２ｈ左右便可萌发，而雌蕊胚囊在开花时仍处在４核期。观察的材料中，绝大部分胚囊在授粉第３天逐渐进入８核早期，第９天发育为成熟胚囊，胚囊为蓼型。③珠孔授精，花粉管最早在授粉第９天进入珠孔，第１０～１１天进入胚囊完成双受精。胚乳在授粉第１１天后出现，受精卵休眠１～２ｄ于授粉第１２天前后进行第一次分裂，胚胎发生为紫菀型。此外，本研究还对巴旦杏早期胚胎发生中胚珠的多糖和单宁物质动态进行了观察。更多还原

【Abstract】 The morphology characteristics of pistil :The style is stuffed; Two ovules are contained in the ovary; The ovule is of bitegmic and crassinucellatation; An obturator arises near the top of the micropyle.The mature times of male and female gemetophytes were not at the same time in a flower in almond.Pollens germinated about 2 hours after pollination.The embryo sac was staying at the 4 nucleis period when a fllower began opening ,and reached to the early 8 nucleis period on the 3th day after pollination , and was mature on the 9th day after pollination in most of the study materials.The development of embryo sac is of polygonum type.From the micropyle, the pollen tube reached into the embryo.The pollen tube reached to an embryo sac and finished duble fertilization about from the 10th to 11th day after pollination, proembryo differentiate initially in an additional 24 hours. The process of embryo development is of asterad type.The polysaccharide trend and tannin substance in ovule during the early enbryogenesis were studied in else.更多还原