Ovule primordia are formed in mid-March.
三月中旬，胚珠原体形成。
This phenomenon was probably correlated with ovule abortion.
这种现象可能与胚珠后期败育有关。
In the plant, bead appearance of ovule be been in becomes an envelope.
在植物，珠被在胚珠外形成一个封套。
The abnormal ovule often appear simultaneously with the abnormal anther.
胚珠的异常常伴随着花药的异常而发生。
The signal system established by WUS is also involved in ovule development.
由WUS建立的信号体系还参与胚珠的发育。
This paper reported the first results of ovule culture in beet wide hybridization.
本文首次报告了甜菜远缘杂交胚珠培养的结果。
The primary chalazal haustorium ramifies around the vascular tissues of the ovule.
初生合点吸器沿着胚珠的维管组织分支。
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。
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。
The occupied area of cultured ovule and fibers affected by low temperature had similar trend to the length of the fiber.
低温处理对离体培养棉花胚珠轮廓面积的大小也有相似的影响。
The results showed that ovule surface might bedivded into the chalazal zone, crest zone, middle zone and the micropylezone.
结果表明，倒生的棉花胚珠可以分为合点区、株柄顶区、腰区和珠孔区。
Cotton fibers were induced from cotton ovule callus cells by suspension culture, float culture or filter paper bridge culture.
用棉花胚珠切块诱导愈伤组织，经悬浮振荡培养、漂浮培养、滤纸桥法等方法诱导成纤维细胞。
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。
The almond fruit was developed from solitary carpel in the superior ovary which there were the border placenta and amphitropous ovule.
扁桃果实由单心皮上位子房发育而成，边缘胎座，横生胚珠。
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。
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。
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。
Studies on molecular regulation of female gametophyte development were reviewed in terms of female gametophyte and ovule and integument development.
该文从雌配子体发育、胚珠发育及珠被发育等几个方面综述了近年来植物雌配子体发育的分子调控机制研究进展。
Changes of the activity of IAA oxidase, tryptophan synthetase and cytokinin oxidase in sterile anther, leaf and ovule were similar to those of phytohormones.
棉花细胞质雄性不育花药、叶片和胚珠中，IA A氧化酶、色氨酸合成酶和细胞分裂素氧化酶活性的变化与内源激素含量的变化基本一致。
Megaspore tetrad is linear. the chalazal megaspore develops into an embryo sac of polygonum type. Hypostase and special integument tapetum exist in the ovule.
大胞子四分体线形排列，合点端大孢子为功能大孢子，胚囊发育类型为蓼型，具有特化的珠被绒毡层和承珠盘。
The young embryo of super-early maturing peach variety 'Chunlei 'at fruit hard-ripe stage maintain embryonic growth under the conditions of in vitro culture of ovule.
极早熟桃品种“春蕾”果实硬熟期的幼胚在胚珠离体培养条件下维持胚性生长。
Reduction of ovule number as a tendency of speciation in the genus is substantiated by the occurrence of tri_ovulate cones coupled with comprehensive characters of the genus.
基于返祖性畸形三胚珠球花的出现及其他形态特征，认为麻黄属胚珠数目减少是该属内物种特化的一个趋势；
In the course of ovule development, un-continual density election substances gradually appeared in cell walls, vacuole gradually become big and cell separated gradually marked.
在胚珠发育过程中，细胞壁上逐步出现不连续的高电子致密物质，液泡逐渐变大，细胞分化逐渐明显。
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。
The material for studies on molecular mechanism of genetic regulation in the course of ovule development and gametophytes forming were mainly from the finding and inducement of mutation.
胚珠发育和雌配子体形成过程中遗传控制分子机理研究的材料主要来源于对突变体的发现和诱导。
The development of research has resolved in part many important problems, such as the origin and molecular mechanism of ovule ontogenesis. But these problems still require further study.
近年来，随着研究手段的不断改进，研究者对许多关键性的问题，如胚珠的起源、胚珠发生发育的分子机制已经有了一定的认识，但是这些问题并未得到圆满的解决。
For the first time, the area formatted by the outline of cultured ovule and fibers was determined using digital image analysis software. This method is relative easier than length measurement.
首次利用数字化图像处理软件确定了离体胚珠及纤维生长轮廓所形成的面积，较纤维长度测量简单易行。
The stasis phenomenon of gynoecium development occurred in floral organogenesis of Reineckia and the abortion of microspore and ovule may be the important causes of its low seed bearing ratio.
吉祥草花器官发生发育过程中出现雌蕊群发育停滞现象，以及吉祥草在小孢子及胚珠发育过程中出现败育情况，可能是吉祥草属结实率低的重要原因。
The stasis phenomenon of gynoecium development occurred in floral organogenesis of Reineckia and the abortion of microspore and ovule may be the important causes of its low seed bearing ratio.
吉祥草花器官发生发育过程中出现雌蕊群发育停滞现象，以及吉祥草在小孢子及胚珠发育过程中出现败育情况，可能是吉祥草属结实率低的重要原因。
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