Search for: [Subject and Keywords = plus trees] OR [Subject and Keywords = chosen tree] OR [Subject and Keywords = selection of trees] OR [Subject and Keywords = genetics of forest trees] OR [Subject and Keywords = Alnus sp.] OR [Subject and Keywords = alder] OR [Subject and Keywords = drzewa doborowe] OR [Subject and Keywords = drzewa mateczne] OR [Subject and Keywords = selekcja indywidualna drzew] OR [Subject and Keywords = genetyka drzew leśnych] OR [Subject and Keywords = olcha] OR [Subject and Keywords = Alnus sp.] OR [Title = Opis drzewa doborowego. Olsza K\-01\-]