Re: Does the circumference of an orange determine the number of seeds?

If you wish to answer your question with an experiment, you will need to buy
some oranges. For each orange, 

1. Measure the circumference using a piece of string and a ruler. 
2. Cut it open and count the number of seeds. I would just count the developed
seeds, not the small, remains of undeveloped seeds.

Not all cultivars (cultivated varieties) of oranges have seeds, e.g. 'Washington
Navel' orange. Most commercially produced oranges are considered seedless
although they may have a few seeds. For your experiment, you would want to use a
seeded type of orange.


References


Re: What determines the number of seeds in an apple?


Re: Where did the original first seedless orange come from?


Orange (Citrus sinensis)