说明:双击或选中下面任意单词,将显示该词的音标、读音、翻译等;选中中文或多个词,将显示翻译。
您的位置:首页 -> 句库 -> 胚珠数
1.
The mean number of ovules per follicle was 10.59,n=320.
每心皮的胚珠数目为10.59(根据320个心皮中胚珠的平均数)。
2.
being or of the nature of an ovule.
胚珠的或有胚珠特点的。
3.
Most angiosperm ovules possess two integuments, while gymnosperms usually have only one.
大多数被子植物的胚珠有两层珠被,而裸子植物通常只有一层。
4.
Seed development in most instances commences following fertilization of the ovule.
大多数种子的形成是从胚珠受精开始的。
5.
the scar on certain seeds marking its point of attachment to the funicle.
种子上的疤痕,系胚珠于胚珠柄的痕迹。
6.
Only a few forest tree species can develop viable seed from unpollinated ovules.
只有少数林木可以从未授粉的胚珠发育成有活力的种子。
7.
development of flower and ovule
花及胚珠发育的时间表
8.
The central portion of an ovule in which the embryo sac develops;the megasporangium.
珠心胚珠的中心,胚芽囊在此发育;大孢子囊
9.
The scar on a seed, such as a bean, indicating the point of attachment to the funiculus.
种脐种子(如豆)上的疤痕,系胚珠于胚珠柄的痕迹
10.
The occurrence of more than one embryo in the ovule denotes polyembryony.
在胚珠中有一个以上的胚发生是表示多胚现象。
11.
Study on the Development of Ovule, Endosperm and Embryo in Stenospermic Seedless Grapes;
种子败育型无核葡萄胚珠、胚乳及胚发育的研究
12.
(of a plant ovule) completely straight with the micropyle at the apex.
(指植物的胚珠)珠孔完全直向顶点。
13.
A minute opening in the ovule of a seed plant through which the pollen tube usually enters.
珠孔种子植物胚珠上的小开口,通常花粉管由此进入胚珠
14.
The region of an ovule that is opposite the micropyle, where the integuments and nucellus are joined.
合点珠孔对面的胚珠内结合珠被和珠心的一个区域
15.
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。
16.
(of a plant ovule) curved with the micropyle near the base almost touching its stalk.
(指植物的胚珠)珠孔弯曲接近底部,几乎接触了干。
17.
A stalk connecting an ovule or a seed with the placenta.
珠柄与胚珠或含胎座的种子相接的叶柄
18.
The cells of the integument and nucellus of some plants form perfectly normal embryos.
某些植物的珠被和珠心细胞形成完全正常的胚。