Question

1.Relay pump theory
2.pulsation theiry

Answer 1

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Godlewski (1884) proposed his clambering or relay-pump theory to explain the vertical movement of water through the plant. He thought that a rhythmic change in the water potential of the living cells like xylem parenchyma and medullary rays caused a pumping action to raise water vertically against gravity.

Answer 2

Answer:

Godlewski (1884) proposed his clambering or relay-pump theory to explain the vertical movement of water through the plant. He thought that a rhythmic change in the water potential of the living cells like xylem parenchyma and medullary rays caused a pumping action to raise water vertically against gravity.