A) Strasburger
B) Godlewski
C) Western
D) Dixon and Jolly
Correct Answer: D
Solution :
Cohesion theory or transpiration pull theory was given by Dixon and Jolly (1884). It is based on three basic assumptions: (i) Cohesion between water molecules (ii) Continuity of water column (iii) Transpirational pull. Relay pump hypothesis was given by Godle wski (1884). According to this water rises in stem due to activity of the cells of xylem parenchyma and medullary rays. Strasburger described cell division, cytoplasm and nucleoplasm and coined the term plasmodesmata.
You need to login to perform this action.
You will be redirected in
3 sec
