pollen tube वाक्य

उदाहरण वाक्य

1. The sperm are transferred from the pollen through the pollen tube.
2. During germination, the tube cell elongates into a pollen tube.
3. Hydration and activation continue as the pollen tube begins to grow.
4. In angiosperms, only a pollen tube enters the micropyle.
5. The pollen tube proceeds to release the two sperm in the megagametophyte.
6. Pollen germination has three stages; hydration, activation and pollen tube emergence.
7. glucan synthase genes expressed in pollen tubes of Nicotiana alata " ..
8. It may grow a pollen tube and undergoing mitosis to produce two sperm nuclei.
9. In botany and palynology, the surface apertures through which the pollen tube germinates.
10. The sperm cells are carried to their destination in the tip of the pollen tube.