Plants – Herbaceous ornamnental flowering plant – Euphorbia
Plant Patent
2001-12-31
2003-02-25
Campell, Bruce R. (Department: 1661)
Plants
Herbaceous ornamnental flowering plant
Euphorbia
Plant Patent
active
PP013597
ABSTRACT:
BOTANICAL CLASSIFICATION/CULTIVAR DENOMINATION
Euphorbia pulcherrima
Willd. cultivar KLEW01073.
BACKGROUND OF THE INVENTION
The present Invention relates to a new and distinct cultivar of Poinsettia plant, botanically known as
Euphorbia pulcherrima
Willd., and hereinafter referred to by the name ‘KLEW01073’.
The new Poinsettia is a product of a planned breeding program conducted by the Inventor in Stuttgart, Germany. The objective of the breeding program is to create new Poinsettia cultivars with attractive flower bract coloration and uniform plant habit.
The new Poinsettia originated from a cross made by the Inventor in 1996 of a proprietary selection of
Euphorbia pulcherrima
Willd. identified as code number L 52, not patented, as the female, or seed, parent, with an unidentified proprietary selection of
Euphorbia pulcherrima
Willd., not patented, as the male, or pollen, parent. The cultivar KLEW01073 was discovered and selected by the Inventor in 1998 as a flowering plant within the progeny of the stated cross in a controlled environment in Stuttgart, Germany. The selection of this plant was based on its attractive flower bract coloration and uniform plant habit.
Asexual reproduction of the new Poinsettia by vegetative terminal cuttings taken at Stuttgart, Germany since 1999, has shown that the unique features of this new Poinsettia are stable and reproduced true to type in successive generations of asexual reproduction.
BRIEF SUMMARY OF THE INVENTION
The following traits have been repeatedly observed and are determined to be the unique characteristics of ‘KLEW01073’. These characteristics in combination distinguish ‘KLEW01073’ as a new and distinct Poinsettia cultivar:
1. Upright and uniform plant habit.
2. Dark green-colored leaves with purple-colored petioles.
3. Red-colored flower bracts.
4. Early flowering; response time, about 8 weeks.
5. Good post-production longevity.
Plants of the new Poinsettia differ from plants of the female parent, the selection L 52, in the following characteristics:
1. Plants of the new Poinsettia are more vigorous than plants of the selection L 52.
2. Leaves of plants of the new Poinsettia are darker green in color than leaves of plants of the selection L 52.
3. Flower bracts of plants of the new Poinsettia are darker red in color than flower bracts of plants of the selection L 52.
Plants of the new Poinsettia differ primarily from plants of the male parent, the unidentified proprietary selection in flower bract coloration.
Plants of the new Poinsettia differ primarily from plants of the cultivar KLEW01072, U.S. Plant patent application Ser. No. 10/036,946 filed concurrently, in plant form as plants of the new Poinsettia are more upright and not as outwardly spreading as plants of the cultivar KLEW01072.
Plants of the new Poinsettia can also be compared to plants of the cultivar Fiscor, disclosed in U.S. Plant Pat. No. 9,364. In side-by-side comparisons conducted in Stuttgart, Germany, plants of the new Poinsettia differed from plants of the cultivar Fiscor in the following characteristics:
1. Plants of the new Poinsettia were more upright and not as broad as plants of the cultivar Fiscor.
2. Plants of the new Poinsettia flowered about one week later than plants of the cultivar Fiscor.
3. Leaves and flower bracts of plants of the new Poinsettia were not as deeply lobed as leaves and flower bracts of plants of the cultivar Fiscor.
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