Dixon and jolly are associated with

Options

A. Light reaction and photosynthesis
B. Anaerobic respiration
C. Cohesion and transpiration pull theory of ascent of sap
D. Apical dominance

Answer

**Step-by-Step Solution:**

1. **Identify the Context**: The question asks about the association of Dixon and Jolly in biological processes.

2. **Recall Relevant Theories**: Dixon and Jolly are known for their contributions to the understanding of the transpiration pull theory, which explains how water moves upward in plants.

3. **Explain the Transpiration Pull Theory**: This theory states that the upward movement of water (ascent of sap) in plants is primarily driven by the process of transpiration, where water evaporates from the leaves, creating a negative pressure that pulls water upward through the xylem.

4. **Mention the Role of Cohesion and Adhesion**: The movement of water is also aided by the physical properties of water, such as cohesion (water molecules sticking to each other) and adhesion (water molecules sticking to the walls of xylem vessels).

5. **Conclude with the Correct Association**: Therefore, Dixon and Jolly are associated with the transpiration pull theory of ascent of sap.

**Final Answer**: Dixon and Jolly are associated with the transpiration pull theory of ascent of sap.

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