|
Plant
|
Normal(mL)
|
Fan(mL)
|
Heater(mL)
|
Lamp(mL)
|
|
Arrowhead
|
3.6
|
7.5
|
6.6
|
4.0
|
|
Coleus
|
0.9
|
6.0
|
3.9
|
3.0
|
|
Devil’s Ivy
|
2.9
|
4.6
|
4.1
|
3.0
|
|
Dieffenbachia
|
4.1
|
7.7
|
6.0
|
3.9
|
|
English Ivy
|
1.8
|
5.1
|
3.2
|
2.1
|
|
Geranium
|
1.2
|
4.7
|
5.8
|
2.4
|
|
Rubber Plant
|
4.9
|
8.4
|
6.8
|
4.3
|
|
Weeping Fig
|
3.3
|
6.1
|
4.9
|
2.5
|
|
Zebra Plant
|
4.2
|
7.6
|
6.1
|
3.2
|
- Transpiration is the process of a plant moving water through its roots and stem. It involves cohesion, water molecules sticking together, and adhesion, water molecules sticking to the sides of the stem/root, as well as evaporation for the water to create space for more to move up.
- Some controls used were the amount of time, the intensity of light, wind, heat, and the amount of water which was started with.
- All the factors, light, wind and heat increased the rate of transpiration.
- Wind caused the greatest increase, as it dries out the plant the most. Heat was a close second as is caused evaporation, and light came in last.
- The rubber plant had the highest rate of transpiration because it uses the most water. Plants that are suited to use less water, such as a cactus, are evolved specifically to survive in dry climates.
- The rate of transpiration would go down because the plant would loose less water. The petroleum jelly would slow down evaporation.
- The plant needs to constantly gain and loose water to carry out cell respiration.
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