My citrus trees are cleft grafted approximately 6 inches above soil level, and branch out at 6"-10" with several trunks. In contrast, I see that some commercial producers keep a single trunk up to approximately 2 feet, like this:
Is it advantageous to keep a single trunk to 2 feet? On the single trunk trees, is the grafting low down and the scion trained as a single trunk, or is it rootstock up to the 2 foot level? Advantages and disavantages would be greatly appreicated, as I did not see this my citrus books.