Plant Variety Journal - IP Australia

Details of Application
Application Number 2006/100
Variety Name ‘Korfobalt’
Genus Species Rosa hybrid
Common Name Rose
Synonym Nil
Accepted Date 21 Jul 2006
Applicant W. Kordes’ Sohne Rosenschulen GmbH & Co KG, Klein
Offenseth-Sparrieshoop, Germany
Agent Treloar Roses Pty Ltd, Portland, VIC
Qualified Person Brian Hanger
Details of Comparative Trial
Overseas Testing Bundessortanamt
Authority
Overseas Data ROS2282
Reference Number
Location Pruistelle Rethmar, Germany. Local observation at Portland,
VIC
Descriptor Rose (Rosa hybrid) TG/11/7.
Period 2003-2004
Conditions The comparative study was conducted at Portland (Latitude
38.15S, Longitude 141.37E), VIC. The roses were maintained
in the open and grown in a well structured loamy clay soil.
Sound farm management practices ensured the plants grew to
their full potential with minimum stress and under high health
conditions. ‘Korfobalt’ was budded in early summer onto
well established 10 month-old Rosa multiflora rootstock.
Examination was conducted in mid autumn on two year old
budded plants growing in double rows along with other
varieties of ‘Kordes’ roses.
Trial Design Observations and measurements were taken from a minimum
of ten plants, selected at random in mid autumn.
Measurements Measurements made on terminal leaflet on the first fiveleaflet
leaf down the flower stem; flower diameter made when
flower first fully open, and sepal length excludes the terminal
leafy extension if present.
RHS Chart - edition 1986.
Origin and Breeding
Controlled pollination: seed parent unnamed seedling was crossed with pollen parent
‘Centenaire de Lourdes’ in May 1992. Hips produced remained on bush until Oct
when harvested and shelled. Seeds planted under greenhouse conditions: germination
commenced in Feb 1993, and seedlings first bloomed in Apr (Northern Hemisphere).
Out of this seedling population, the best seedlings were selected for further trials.
Budding eyes were budded to R. canina root stock and planted in the open. From
these the seedling now known as ‘Korfobalt’ was selected. This new variety has been
multiplied in number by vegetative propagation and flowered for over five generations
and appeared genetically stable. Selection criteria: improved greenhouse cut flower
rose variety. Breeding directed by William Kordes, of W.Kordes' Sohne Rosenschulen
GMBH & Co KG, Sparrieshoop,Germany.
Page 408 of 550
Plant Varieties Journal Vol. 21 No.3