Walnut Programs Research & Information Centers A ripe walnut, ready for harvest. 100 years of breeding - UC Davis - Walnut (pdf) Clonal Propagation of Walnut Rootstock Genotypes for Genetic Improvement 2008 (pdf) Evaluation of Wild Jugalns Species for Crown Gall Resistance - 2008 (pdf) Walnut Improvement Program - 2008 (pdf) UC Fruit & Nut Research and Information Center
