Forest Tree Breeding and Genetics

Abies Agric alba America Anon Betula Betulaceae branching habit breeders Buxus Caprea characters chestnut chromosome sets cinerea colchicine cordata crenata Cytology decidua deltoides dentata dioecious diploid disease factors fertility forest tree breeding forestry forms gametophyte genes Genetical analysis genotype genus growth rate haploid haploid chromosome number heterosis heterotic hybrid vigour important incana incl individual so constituted interspecific hybrids investigated Jablokov Jagdw japonica Johnson Kaempferi larch macrocarpa mandshurica marilandica meiosis meiotic meiotic prophase metaphase methods Michx mutation Natural variation nigra nomen ambiguum obtained parents photoperiodic pine Pinus plant Platanus pollen polyploid poplar Populus progeny pubescens pumila purpurea Quercus races reported Resistance to fungi Resistance to insects Resistance to low Robur Schreiner seed seedlings selection sessiliflora Sieboldiana species studied susceptibility Sylvén sylvestris taxonomic tetraploid Tilia Timber yield Tischler topocline tremula triploid Tsuga types Varietal Varietal differences varieties vegetative reproduction vegetative vigour verrucosa viminalis Wettstein winter hardiness