Question

Which of the following is a 'Double-working' practice?

A Two scions on one stock Correct Answer Incorrect Answer
B Using an interstock Correct Answer Incorrect Answer
C Grafting twice a year Correct Answer Incorrect Answer
D Root then stem grafting Correct Answer Incorrect Answer

Solution

Double-working involves grafting a compatible intermediate piece (interstock) between a scion and a rootstock that are otherwise incompatible. It can also be used to induce dwarfing or improve disease resistance.

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