Seeds in seedless watermelons

[otokage]

Seedless watermelons are achieved through the making of a triploid organism supposed to be sterile, but why do seedless watermelons sometimes contain black, apparently viable, seeds?

[Raider5678]

 

Seedless watermelons are achieved through the making of a triploid organism supposed to be sterile, but why do seedless watermelons sometimes contain black, apparently viable, seeds?

 

Because they aren't seedless.

[John Cuthber]

... apparently viable, seeds?

 

To whom is this apparent?

Did you plant them?

[otokage]

To whom is this apparent?

Did you plant them?

 

No, hehe, I didn't plant them, but they are black and equal in appearance to viable seeds, unlike the white "seeds" that seedless varieties usualy have.