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(C) The most widely accepted theory for the ascent of sap in plants is the $Transpiration 	ext{ } Pull 	ext{ } and 	ext{ } Cohesion-Tension 	ext{

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Transpiration pull and cohesion-tension theory,proposed by Dixon and Joly

Vedclass · Answer

(C) The most widely accepted theory for the ascent of sap in plants is the $Transpiration 	ext{ } Pull 	ext{ } and 	ext{ } Cohesion-Tension 	ext{ } Theory$. This theory was proposed by $Dixon$ and $Joly$ in $1894$. According to this theory,the loss of water through transpiration creates a negative pressure (tension) in the xylem vessels,which pulls the water column upward. The cohesive and adhesive properties of water molecules ensure that the water column remains continuous and does not break under this tension.

Which is the most widely accepted theory for the ascent of sap in trees?

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