I used to think all vining squashes produced adventitious roots at the leaf joints. But I have a huge bed of Delicata (Pepo) with no sign of any adventitious roots. However my Sibley and Sweat Meat, both Maximas, put out roots at all leaf joints even when they're not touching the soil. I encourage this where possible by pushing soil under the vines and watering those areas. Oddly enough, my Maximas are prone to some wilting while the Delicatas never wilt at all.

Anyway, my question is which squashes produce adventitious roots? Can this be divided by species? Or do some varieties in one species differ from another?