Fall growth on tillage radishes

These tillage radishes were sown just before Labor Day, and I dug them up just before Thanksgiving. They have impressive growth despite dry weather through much of September, relatively wet weather in October and November, and cool temps throughout the fall. The radishes on the right were treated with Chandler Dry Seed Treat and average 19 inches long. The radishes on the left were not treated and average 9 inches long.