Square Watermelons ,I wondered how??

 

I wondered how is this possible ?,but to my view this was the pic taken by my friend in JAPAN for a onsite work. How amazing this is???

I asked how is this possible, He answered "Even I'm also quite shocked with the first look, This shows how a creativity can change things in to a much better and safer for Humans. I asked the shop vendor for an explanation for such a nice shape, the answer I got tickled me. They carefully view each watermelon growing in their Gardens and after it has reached a certain dimensions they place each melon in a square plastic box with the top side opened without pulling it off from the tree. Later, It grows to a perfectly shaped one which is felt nice by many customers as they feel difficult to carry conventional spherical shaped melons".