It consists of an ovary , containing one or more ovules , a stalk , or style ( absent in some plant groups ) , and a terminal receptive surface , the sigma 它由子房（内含一个或多个胚珠） ，花柱（部分植物没有花柱）和一个末端的接受表面柱头构成。
Is the third class protected plant of china . now , it is rare and endangered , but only little parts of ovules develop to seeds and the quality of seeds are worse 猬实为我国国家三级保护植物，珍稀濒危。其由胚珠转化成种子困难，种子质量低劣。
Funicle ( funiculus ) the stalk attaching the ovule ( later the seed ) to the placenta in angiosperm ovaries . nutrients pass through the funicle to the ovule and seed 珠柄：被子植物子房中连接胚珠（之后的种子）和胎座的柄。营养物质通过珠柄传递到胚珠和种子。
At the end of february , the bract attained approximately their full size , and a pair of anatropous ovules were initiated on the adaxial surface at the base of the fertile ovuliferous scale 2月底，苞片体积不再发生变化，珠鳞膨大端的基部的近轴面分化出2个倒生胚珠。
Ovary , ovule , embryo culture and somatic hybridization could be used to overcome the incompatibility of distant hybridization and hybrid sterility , increase the genetic resources 子房、胚珠和胚培养以及体细胞杂交可用于克服远缘杂交的不亲和性和杂种的不育性，有利于拓宽种质资源。
Double fertilization the fusion of one pollen nucleus with the egg to form the zygote and of the other pollen nucleus with a polar nucleus to form the triploid endosperm nucleus 双受精：指花粉粒中的一个精子与胚珠中的卵细胞结合形成受精卵，另一个精核与极核结合形成三倍体的胚乳核。
He also observed that gymnosperm ovules were not enclosed in an ovary wall , leading to the establishment of one of the basic differences between angiosperms and gymnosperms 他还观察到裸子植物的胚珠并不是被子房壁包围，这个发现直接导致了被子植物和裸子植物之间最根本的几点区别的建立。
Testa the hard dry protective covering of a seed , formed from the integuments of the ovule . after fertilization the layers of the integuments fuse and become thickened and pigmented 外种皮：覆盖在种子外部的坚硬干燥的保护层，由胚珠的珠被发育形成。受精作用后珠被各层发生融合并加厚着色。
When ovule orientation is orthotropous the chalaza corresponds to the point where the funicle is attached but in anatropous and campylotropous ovules the chalaza is some distance from the funicle 当胚珠的方向是直生胚珠时，合点和珠柄连成一条直线，当胚珠是倒生胚珠或弯生胚珠时，合点和珠柄之间有一定的距离。
A transcriptional fusion between 35s promoter and nearly full length hag1 cdna was constructed and transformation was performed through agrobacterium using root expantso the first whorl organs of transgenic plants flowers are carpel - like organs with stigmatic papilllae and a few ovules 转基因植株花的表型类似与ap2突变体，其第一轮花器官萼片具有心皮的特征，顶端产生柱头状的乳突，边缘有胚珠产生。
