Crop Wild Relatives Cultivar Stories Landraces & Heirloom Cultivars Phenotyping & Genotyping Plant BreedingApril 17, 2024April 17, 2024 Wheat – Resistance to Stem Rust Race Ug99 READ BOOK CHAPTER Patrick Byrne, Gordon Cisar This success story describes the threat of stem rust race Ug99 that appeared …