Did you see the pic in the other thread of the long dandelion root. That's what our radish crop looks like...........sorta. Our carrots will hardly grow and our turnips don't get a big fat root either.
We have a greenhouse and have radishes both in the green house and outside. My professional gardener domestic partner says the radishes needed more water.
Anyway............what's wrong that we can't get good healthy roots? We always planted radishes in the garden as a kid and never had trouble getting a good crop.