In trunk implantation, what dissolves the capsule or inner membrane holding the chemical?

In trunk implantation, what dissolves the capsule or inner membrane holding the chemical?

• A. Sap from the living wood
• B. Sunlight
• C. Rainwater
• D. Enzymes in the soil

Answer: (A)

Dissolution of the capsule happens because it is designed to respond to the tree’s own sap. When the capsule or its inner membrane is placed in the trunk, it sits in contact with living wood and the sap that flows through the xylem. The sap contains solvents and nutrients that gradually break down the membrane, releasing the chemical into the tree’s vascular system for distribution. External factors like sunlight, rainwater, or soil enzymes aren’t present inside the trunk to affect the capsule, so they don’t cause dissolution. The tree’s internal sap is the agent that dissolves the capsule, enabling the treatment to move systemically within the tree.

Dissolution of the capsule happens because it is designed to respond to the tree’s own sap. When the capsule or its inner membrane is placed in the trunk, it sits in contact with living wood and the sap that flows through the xylem. The sap contains solvents and nutrients that gradually break down the membrane, releasing the chemical into the tree’s vascular system for distribution. External factors like sunlight, rainwater, or soil enzymes aren’t present inside the trunk to affect the capsule, so they don’t cause dissolution. The tree’s internal sap is the agent that dissolves the capsule, enabling the treatment to move systemically within the tree.