From prior reading I've done, grapefruit was cultivated by crossing pomelo with smaller, more bitter citrus. Here, the wikipedia says it was with a sweet orange

From prior reading I've done, grapefruit was cultivated by crossing pomelo with smaller, more bitter citrus. Here, the wikipedia says it was with a sweet orange [1] 1. https://en.wikipedia.org/wiki/Grapefruit https://en.wikipedia.org/wiki/Grapefruit