It depends how big the tree is and how many branches it has.
On average, an orange tree will produce 435 oranges per tree each season.
In the sentnece, "You have an orange.", the count noun is orange. In this sentence, it is just one orange (indicated by the article 'an'), but it could be two oranges, or many oranges.
1 the orange kind
It depends on the orange
2 oranges
I think you may need about 51 to 49 oranges
1
Trees produce fruits such as apples, oranges, and pears.
A lonely orange
1
20 plants of oranges are planted in per a cre