the nutritional value of lettuces
 

I am doing an assignment on merchandising, displaying and selling hydroponic lettuces. I need information on the nutritional value of lettuces, their use, storage requirements and recipes in which they are used. I also need information on display conditions (temp, lights), how you can tell when they aren't saleable, and what you can do to ensure freshness while on display

If I new all that I'd be growing and selling lettuce myself.