Why Is It Necessary to Graft Rootstock onto Wine Grape

question 29

Multiple Choice

Why is it necessary to graft rootstock onto wine grape plants?

• A)to avoid aphid infestation
• B)to avoid downy mildew infection
• C)to avoid deer damage
• D)to create wines with a higher alcohol content
• E)to insure the wine grape flowers are pollinated

---

Definitions:

Pentanal

A five-carbon straight-chain aldehyde with the formula C5H10O, characterized by having a terminal carbonyl group.

Ethylamine

A simple organic compound (C2H5NH2) characterized by an ethyl group attached to an amine group, used in chemical synthesis.

Acid Catalysis

A process where an acid is used to accelerate a chemical reaction, often by increasing the concentration of hydrogen ions in the reaction environment.

Organic Product

A compound or substance that has been derived from living organisms and contains carbon.