A whole plant fruit formation stage (PO:0007042) that begins when the first fruit (PO:0009001) on a whole plant (PO:0000003) that has no other fruits as part enters a fruit initiation stage (PO:0025503) and ends when the average size of fruits (PO:0009001) on a whole plant (PO:0000003) has reached 10% of final size. [source: ISBN:3826331524, MaizeGDB:ms, POC:curators]
Comment
This terms is best used for plant with more or less synchronous fruit development and can only be used of the final size of the fruit is known. This stage is to be used for the development stage of a whole plant (PO:0000003). For an individual fruit, use fruit size up to 10% stage (PO:0025504).