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61. Who is known as the father of plant physiology ?

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62. What is a porometer ?

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63. How high can the transpiration pull lift water up a xylem vessel.

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64. Who coined the term root pressure?

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Transpiration	Guttation
1. Water loss is in the form of water vapour.	1. Water loss is in the form of water droplets.
2. Occurs through stomata	2. Occurs through hydathodes.
3. Occurs usually during day	3. Occurs during the night.
4. Transpiration pull is involved	4. Root pressure in involved