Research & Information CentersA 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
