To be fair to share with others, besides good thing of this method (
earlier, higher yield, bigger fruits, more resistant to droughts) I
didn't mention that, this kind of plant is resistant on Fusarium
oxysporun f.sp. niveum.
I have forgotten to mention this because I don't produce watermelons for
commercial use, and don't pay too many attention on them. Accidentaly
when I was reading some my books from university, I found this info.
So if this can help someone, I'm twice as happy. If not I think I'm not
I grafted for myself some of them, and cantaloupes, so I will write how
I pass with them.