hand-pollination

与hand-pollination相关的网络例句 [注：此内容来源于网络，仅供参考]

It takes about 0.5 h for a pollen tube from germination to arrive at the micropyle. About 0.5 h after pollination, the pollen tube releases two sperms into one synergid. At 0.5-2.5 h after pollination, the egg cell fuses with one sperm to form a zygote. About 10.0 h after pollination, the division of the zygote begins. The duration of the zygote lasts about 2.5-10.0 h. However, one sperm nucleus fuses with two polar nuclei at 1.0-3.0 h after pollination, and 5.0 h after pollination the primary endosperm nucleus begins to divide.

水稻受精过程经历的时间表如下：授粉后，花粉在柱头萌发；花粉萌发至花粉管进入珠孔大约需要0.5小时；授粉后0.5小时左右，花粉管进入一个助细胞，释放精子；授粉后0.5-2.5小时，精卵融合形成合子；授粉后约10.0小时，合子第1次分裂，合子期为授粉后2.5-10.0小时；授粉后1.0-3.0小时，精核与两极核融合；授粉后约5.0小时，初生胚乳核分裂。

The microspore germination of self-pollination,self-plant-pollination and cross-pollination and the pollination microspore germination in and outside of stigma were observed with fluorescence microscopy.

采用荧光显微镜技术，观察自花授粉、自株花授粉、异花授粉下花粉粒的萌发生长，以及柱头内外授粉花粉粒的萌发情况。

The highest fruit set percentage was obtained when hand-pollination was done in one day (at the stage of half opened petals) before the anthers naturally dehisced. Hand-pollination could increase fruit set from 2 days to 4 hours (at the stage of tiny dehiscent petals to over half-opened petals) before the anthers naturally dehisced. The pistil compatibility was strong and fruit set percentage with hand-pollination was the highest one day before the anthers naturally dehisced (at the stage of half-opened petals).

从花药自然裂开前2 d到自然裂开前4 h（相当于花瓣呈微张开到超过半张开状态），雌蕊都具有容受性，这期间进行人工授粉能提高坐果率，但以花药自然裂开前l d（相当于花瓣呈半张开状态时），雌蕊容受性最强，人工授粉坐果率最高。

与hand-pollination相关的网络解释 [注：此内容来源于网络，仅供参考]

open pollination：自由授粉

pollination 授粉 | open pollination 自由授粉 | cross pollination 异花授粉

Theory should go hand in hand with practice：理论应该与实践结合在一起

War and misery go hand in hand. 战争与苦难永不分开. | Theory should go hand in hand with practice. 理论应该与实践结合在一起. | 12. hand to hand 短兵相接,逼近

Theory should go hand in hand with practice：理论应与实际结合

Let's work hand in hand. 让我们携手合作吧. | Theory should go hand in hand with practice. 理论应与实际结合. | You must to hand in hand with us. 你们必须和我们步调一致.