Which is the most widely accepted theory for | vedclass

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(D) The most widely accepted theory for the ascent of sap in plants is the $Dixon$ and $Jolly's$ $Cohesion-Tension$ and $Transpiration$ $Pull$ $Theory

Vedclass · Accepted Answer

Dixon and Jolly's Cohesion-Tension and Transpiration Pull Theory

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(D) The most widely accepted theory for the ascent of sap in plants is the $Dixon$ and $Jolly's$ $Cohesion-Tension$ and $Transpiration$ $Pull$ $Theory$. According to this theory,the transpiration pull generated in the leaves creates a negative pressure (tension) in the xylem vessels. Due to the cohesive and adhesive properties of water molecules,a continuous water column is maintained from the roots to the leaves. This tension pulls the water column upward against gravity,facilitating the ascent of sap.

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

Similar Questions

Conduction of inorganic materials in plants occurs mainly through which of the following? Or,minerals absorbed by roots move to the leaves through:

Which of the following methods is adopted by a plant for the absorption of water when a cut shoot is fitted in a potometer?

Which of the following processes is the most rapid?

Which of the following contributes most to the transport of water from the ground to the leaves of a tall tree? Or,the factor or process which best explains the rise of water from roots to the top of a tall tree is:

$A$ : Root pressure is dynamic and is always a positive hydrostatic pressure.
$R$ : It is a universal phenomenon and develops under absorption lag.

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