John Preece Dr. John Preece discusses the conservation of crops at the USDA-ARS National Clonal Germplasm Repository for Tree Fruit and Nut Crops and Grapes in Davis, California and the National Arid Land Plant Genetic Resource Unit in Parlier, California.
Conservation of crops at the USDA-ARS National Clonal Germplasm Repository for Tree Fruit & Nut Crops & Grapes in Davis, CA and the National Arid Land Plant Genetic Resource Unit, in Parlier, CA
