Pollen Germination Experiment
Observing Pollen Tube Growth Under Different Conditions
Observe how pollen grains germinate and grow pollen tubes under different sugar concentrations. The pollen tubes are essential for plant reproduction as they deliver sperm cells to the ovule.
Time: 0 min
Pollen Grains
50
Germinated
0
Germination Rate
0%
Avg Tube Length
0μm
Observation:
The experiment will show pollen grains germinating and growing pollen tubes at different rates depending on the solution composition.
Pollen Germination Process
1. Pollen Hydration:
Pollen grains absorb water from the moist surface of the stigma, causing them to swell and begin germination.
2. Tube Emergence:
A pollen tube emerges from the germination pore, growing through the style toward the ovule.
3. Tube Growth:
The tube grows by tip extension, guided by chemical signals from the ovule, carrying two sperm cells for double fertilization.
