花粉

The pollen morphology of 5 species of Corydalis from northeast China was observed and compared by SEM.

用扫描电镜对东北延胡索极其近缘植物的花粉形态进行了观察，结果发现花粉粒在形状、大小、外壁纹饰、沟的长短及宽度等方面均有区别，从中获得了东北延胡索及其近缘植物分类方面的孢粉学依据。

A number of pollen grains were deposited on alluvial fans and delta plains of North China Plain, and the concentration grains of pollen grains is more than 3000 per gram.

华北平原孢粉沈积相研究表明，洪积扇和三角洲平原区沈积的花粉较多，花粉沈积浓度多在3000粒/g以上。

At diakinesis, 0.2 tetravalents, 0.05 hexavalents and 0.05 octovalents per pollen mother cell were detected, which was absent in cultivated cucumber. In 30% PMCs, crossed chromosomes occurred at diakinesis.

在减数分裂终变期，平均每个花粉母细胞有0.2个四价体、0.05个六价体和0.05个八价体，约30%的花粉母细胞中存在拉十字的染色体。

Pollen dimorphism and bubble4ike protrusions were found in Spiradiclis.

此外，本属植物的花粉具有花粉2型和"芽状"结构的现象。

Elderberry was characterised by relatively high pollen densities even when its own pollen was subtracted from the total amount.

接骨木的特点是花粉相对较高，即使自己的花粉是从总量。

The high abundance of pollen on elderberry was partially due to self-pollen.

对接骨木花粉高丰度部分是由于自我花粉。

The pollen of the samples is small pollen type, elliptic, long-spheric or subspheric,3-colporate,isopolar.

供试花粉均为小花粉类型，椭圆形、长球形或近球形，三孔沟，等极，表面有夹带二歧分叉的条状纹饰作纵向排列。

Emasculation will probably be needed, and the pollen so obtained being used either in the pollen -mix or for dilution purpose

或许需要去雄，如此获得的花粉可用于混合授粉或稀释授粉。雄蕊长在花的中央，能产生花粉。

As the male gametophyte, pollen delivers sperm to the embryo sac for fertilization by pollen-tube polarized growth.

花粉作为种子植物的雄配子体，通过萌发后极性生长的花粉管将精细胞送到胚囊完成受精作用。

In the zygote and endosperm cells, sperm plastids can also be detected by their features.

杜鹃的成熟花粉是二细胞型，精细胞在花粉管中形成。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了