Answer: That is certainly a strange happening getting only red seedless watermelons and some with sees in them. I think you're correct in saying that the Crimson Sweet melon caused a pollination incident with a few of the seedless melons. But why no yellow seedless melons? My only guess would be the yellow seedless is less dominant than the red and they died out. Or the seeds got mixed up in the seedhouse and you got just red seedless. Either way, it's got me stumped. You could try calling the vegetablespecialist at Penn State -Mike Orzolek, 814-863-2251 and see if he has any ideas.
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