1^st crop raised in hydroponics is

Hydroponics is a type of horticulture and a subset of hydroculture that involves growing plants, usually crops, without soil, by using water-based mineral nutrient solutions in aqueous solvents.
William Frederick Gericke, a physiologist at the University of California at Berkeley, is regarded as the father of Hydroponics.
The first crop raised in Hydroponics is Tomato grown by William Gericke in 1937. He grew tomato vines about 7.6 metres high in his backyard in a mineral nutrient solution.