GMO seeds are commonly used in field crops like corn and wheat but will KILL broad leaf vegetables like tomatoes and lettuces. There are many misconceptions about GMO seeds used in planting typical vegetable gardens and Portable Farms® uses NO GMO seeds in our aquaponics systems. GMO seeds are commonly used in the crops corn, wheat, soy, cotton, sugar, zucchini, squash, papaya, aspartame, and milk products.