1·Pollen tube was very small.
花粉管细小或畸形；
2·Pollen tube crawled (twisted) at the stigmatic surface.
花粉管在柱头内逆行生长；
3·Research on soybean pollen tube pathway was carried out.
对大豆花粉管通道技术进行深入研究。
4·A serologic reaction retards the growth of the pollen tube.
血清反应阻止花粉管生长。
5·The pollen tube entered into the embryo sac via one synergid.
花粉管经由一个助细胞进入胚囊；
6·After entering the pollen tube, the generative cell approached the vegetative nucleus before long and sticked each other.
当生殖细胞进人花粉管后，在较短的时间内接近营养核，并与其相贴合。
7·The process of pollen tube growth involves many aspects, especially the synthesis of cell wall and the cytoplasmic movements.
花粉管的生长过程包括许多方面，其中最为重要的是花粉管细胞壁的合成和胞质运动。
8·The method of pollen tube pathway was formally established in 1983. Since then, it has been widely used in crop genetic improvement.
自1983年我国学者创立花粉管通道法以来，在多种农作物中得到应用。
9·More PCR positive plants could obtain by ovary-drip (4.5%) than that by pollen tube pathway (2.0%), when transformation was conducted.
实际转化操作表明，子房滴注转化法的PCR阳性率（4.5%）要高于花粉管通道法（2.0%）。
10·Results from different treatments showed that the pollen tube growing phenomenon was from the fusion between two types of protoplasts.
不同处理的结果显示，这一现象来源于异核体细胞。