MadSci Network: Botany |
I've not examined a large number of bananas but I would suspect most are roughly three or four-sided. Banana fruits develop from an ovary which botany references say should have three locules so the fruit should be roughly three-sided (see first photo link in references). Therefore, you might expect the peel could separate into three parts. If you look at the cross section, you can see the peel is thickest in the corners where it naturally separates when peeled. It is also thinner in the middle of the three sections. That structure may have something to do with it. It might depend on the peeling technique not just the fruit structure. Have you tried peeling a lot of bananas to get data on the number of peel segments you obtain? There are a number of cultivated varieties of bananas so they may differ in the number of locules and how the peel separates. For example, the second link in the references shows what appears to be a four-sided banana and has four peel segments. Before you peel the banana see if you tell how many sides it has and see if that influences how many sections the peel separates into. References Banana Cross Section Photo Four-sided? Banana Photo
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