Start Date: Sep 01, 2008
End Date: Aug 31, 2013
These efforts will focus on traditional breeding methods to develop seedless cultivars. Tetraploid clones will be identified or developed and then hybridized with diploids to create triploids. Additional approaches will include mutation breeding, wide hybridization and breeding for double flowers lacking pistils. Resulting progeny will be assessed for fertility and commercial merit. Target crops will include: amur maple (Acer ginnala), barberry (Berberis spp.), catalpa (Catalpa spp.), elaeagnus (Elaeagnus spp.), flowering crabapple (Malus spp.), flowering pear (Pyrus spp.), lace-bark elm (Ulmus parvifolia), miscanthus (Miscanthus spp.), mimosa (Albizia julibrissin), Norway maple (Acer platanoides), privet (Ligustrum spp.), spirea (Spiraea spp.), St. Johnswort (Hypericum spp.), and winged euonymus (Euonymus alatus).