Zaiger Genetics: Apricots in test tubes in the tissue culture lab run by Grant Zaiger, Floyd's son. 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. Tissue culture Lab. 1983.