Plants – Herbaceous ornamnental flowering plant – Dahlia
Plant Patent
2002-02-22
2003-03-18
Campell, Bruce R. (Department: 1661)
Plants
Herbaceous ornamnental flowering plant
Dahlia
Plant Patent
active
PP013664
ABSTRACT:
BOTANICAL CLASSIFICATION/CULTIVAR DESIGNATION
Dahlia variabilis
cultivar Oregon.
BACKGROUND OF THE INVENTION
The present Invention relates to a new and distinct cultivar of Dahlia plant, botanically known as
Dahlia variabilis
, commercially referred to as a pot-type Dahlia, and hereinafter referred to by the name ‘Oregon’.
The new Dahlia is a product of a planned breeding program conducted by the Inventor in Hillegom, The Netherlands. The objective of the breeding program is to create new pot-type Dahlia cultivars with uniform plant growth habit and attractive ray floret coloration.
The new Dahlia originated from a cross made by the Inventor in 1996 of two unidentified proprietary
Dahlia variabilis
seedling selections, not patented. The new Dahlia was discovered and selected by the Inventor as a single flowering plant within the progeny of the stated cross grown in a controlled environment in Hillegom, The Netherlands. The selection of this plant was based on its desirable inflorescence form and attractive floret colors.
Asexual reproduction of the new Dahlia by vegetative tip cuttings was first conducted in Hillegom, The Netherlands in 1997. Asexual reproduction by cuttings has shown that the unique features of this new Dahlia are stable and reproduced true to type in successive generations.
SUMMARY OF THE INVENTION
The cultivar Oregon has not been observed under all possible environmental conditions. The phenotype may vary somewhat with variations in environment such as temperature, daylength and light intensity, without, however, any variance in genotype.
The following traits have been repeatedly observed and are determined to be the unique characteristics of ‘Oregon’. These characteristics in combination distinguish ‘Oregon’ as a new and distinct pot-type Dahlia:
1. Upright, uniformly mounded and compact plant habit.
2. Freely branching, full and dense plants.
3. Short response time.
4. Red-colored ray florets with bright yellow-colored disc florets.
Plants of the new Dahlia differ from plants of the parent selections primarily in ray floret coloration.
Plants of the new Dahlia can be compared to plants of the cultivar Maryland, disclosed in U.S. Plant Pat. No. 11,602. However, in side-by-side comparisons conducted in De Lier, The Netherlands, plants of the new Dahlia differed from plants of the cultivar Maryland in the following characteristics:
1. Plants of the new Dahlia flower about one to two weeks earlier than plants of the cultivar Maryland.
2. Plants of the new Dahlia had smaller leaves than plants of the cultivar Maryland.
3. Plants of the new Dahlia had smaller inflorescences than plants of the cultivar Maryland.
4. Plants of the new Dahlia and plants of the cultivar Maryland differed in ray floret coloration.
Campell Bruce R.
Kizilkaya Michelle
Whealy C. A.
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