title: Chromosome numbers of the progeny from the cross triploid x tetraploid Populus tremula.
authors.forename: H
authors.initials: H
authors.lastname: JOHNSSON
mesh_terms: D002875:Chromosomes; D011123:Polyploidy; D032107:Populus; D057891:Tetraploidy; D057885:Triploidy
keywords: CHROMOSOMES