Acer is a large and important genus of woody plants most commonly encountered as small to large trees in urban landscapes. Considerable investigation has been devoted to addressing the taxonomy of maples, but little is known about genome sizes across the genus. Relatively more work has been conducted to determine...
Fruit diameter of triploid and tetraploid Malus spp. accessions were evaluated based on ploidy and seed number. Pome size in relation to seed number and ploidy level was evaluated using Tukeys HSD in R. With 95% confidence, pome diameter was not impacted by seed number in these selections (Tukey’s HSD...
Cotoneaster is a genus of ornamental landscape plants commonly affected by fire blight. Fire blight is a disease caused by the bacterial pathogen, Erwinia amylovora (Burrill) Winslow et al. that attacks a wide range of taxa in the apple subfamily (Maloideae; Rosaceae). To assess susceptibility of species and identify potential...
Flowering currant (Ribes sanguineum Pursh.), also known as winter currant, is native to the West Coast of the U.S., primarily west of the Coast Range from Southern California north to British Columbia with populations also occurring in Idaho. The species is prized for its early spring flowers in pendulous racemes...
American beautyberry (Callicarpa americana) is a deciduous shrub native to the southeast U. S. and is grown primarily for its metallic-purple fruit that develop in the fall. There are also pink- and white-fruiting and variegated forms but these traits are rare in nature and there is no information available regarding...
Zoysiagrasses (Zoysia Willd.) are a slow-growing, tetraploid (2n = 4x = 40) turfgrass that can be successfully managed with less input than many other warm-season grasses. Despite extensive genetic and morphological variation, genotypes with the ability to recuperate quickly from damage are rare. Therefore, a long-term effort to increase vegetative...