英汉词典

1.And where is the position of its ovule?

胚珠生于什么位置等。

2.In this paper, we studied the hormone level and the proteome of female-sterile clone and hoped to discover the reason of ovule abortion.

本论文分别从激素水平和蛋白质组水平对其败育机制进行了初步研究。

3.It is suggested that directional growth of pollen tubes are controlled by molecular signal in ovule.

实验结果说明花粉管的定向生长受胚珠的分子信号调控。

4.Development of megaspore and formation of embryo sac: the ovule has a layer of parietal cells at the sporogenous stage.

大孢子的发育及胚囊的形成：造孢时期，造孢细胞发育成大孢子母细胞。

5.In present work, the development of anther, formation of pollen grain and development of ovule and formation of embryo sac in Ramie were observed.

本工作对苎麻花药的发育和花粉粒的形成、胚珠的发育和胚囊的形成进行了观察。

6.The experiment showed that ovule culture in overcoming cross-incompatibility between radish and Chinese cabbage is of significance.

试验证明胚珠培养在克服萝卜和大白菜属间杂交不亲和性方面具有一定意义。

7.Upon further increase of the exogenous hormone concentration, new ovule primordia could be formed from the proliferated nucellus cells, which further developed into many new ovules.

进一步提高外源激素浓度，珠心细胞又可以分化出新的胚珠原基，进一步长大以后发育成许多新的胚珠。

8.Pollen morphology and hydration, ovule development, formation of pollination drop and the pollination process of Taxus chinensis (Pilg.

的花粉形态和水合特性及胚珠发育、传粉滴形成与传粉过程。