Question

Which method of grafting is used for reworking old fruit tree?

• A. Whip and tongue
• B. Cleft grafting
• C. Splice
• D. Wedge grafting

Hint:

When reworking old fruit trees (topworking), the existing branches (stock) are often much thicker than the new scions.
Cleft grafting is ideal for this: a split is made in the larger stock, and smaller, wedge-shaped scions are inserted.
Whip and tongue or splice grafting are for when scion and stock are similar in size.

Answer 1

The Correct Option is B

Step 1: Whip and tongue, and splice grafting need scion and stock of similar, small diameter.
Step 2: Old trees have thick branches, much larger than the new scion.
Step 3: Cleft grafting splits the thick branch and wedges scions into the cleft, matching cambium at the edges.
Step 4: The correct answer is Cleft grafting.