I just ran across an article I hadn't seen before by the University of Georgia discussing irrigation of tobacco. I learned some things I wasn't aware of and wanted to share. Their findings should also apply to those of us that water with a garden hose. Frequency (how much or how little) of watering can affect nicotine, sugars, flavor, yields, and could potentially even help tailor our leaf to our own preferences for a potential outcome.
extension.uga.edu
Irrigating Tobacco | CAES Field Report
This publication is a comprehensive guide to irrigation methods for tobacco in Georgia.