It is grown from cuttings from the host orange tree .
They grow from the tree
"Seedless oranges" actually aren't always completely seedless. Some of them have seeds, so you would plant those and then get your "seedless" orange tree.
you dont
Many fruit trees are grafted into other trees with seedless varieties.
Naval Oranges are indeed seedless. The naval end of a naval orange is a "conjoined" twin making the whole orange sterile as soon as the flower starts to fruit. Thus not making any seeds. Also the only way to grow a naval orange tree is by grafting a naval orange branch onto another citrus tree, or from growing a plant from a naval orange root stock.
in a tree
A tree...
With a seed
No nothing will happen.
only the orange tree
Seedless fruit trees reproduce for cuttings. Twigs or branches are cut of from a successful tree and planted. A new tree, genetically identicle to the parent is produed from the is method.
On a tree in a warm climate.