Gary and and his father Floyd Zaiger in one of their orchards. Floyd Zaiger (Born 1926) is a biologist who is most noted for his work in fruit genetics. Zaiger Genetics, located in Modesto, California, USA, was founded in 1958. Zaiger has spent his life in pursuit of the perfect fruit, developing both cultivars of existing species and new hybrids such as the pluot and the aprium. Zaiger with his son under an aprium (apricot & plum) tree. 1983. MODEL RELEASED.