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Kalanchoe plant named `Soft Katharina`
PP12308 Kalanchoe plant named `Soft Katharina`
Patent Drawings:Drawing: PP12308-3    Drawing: PP12308-4    
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(2 images)

Inventor: Jepsen
Date Issued: December 25, 2001
Application: 09/778,214
Filed: February 8, 2001
Inventors: Jepsen; Knud (Hinnerup, DK)
Assignee: Knud Jepsen A/S (Hinnerup, DK)
Primary Examiner: Campell; Bruce R.
Assistant Examiner: Kizilkaya; Michelle
Attorney Or Agent: Whealy; C. A.
U.S. Class: PLT/340
Field Of Search: PLT/34.0
International Class:
U.S Patent Documents:
Foreign Patent Documents:
Other References:









Abstract: A distinct cultivar of Kalanchoe plant named `Soft Katharina`, characterized by its numerous large light orange flowers; upright and compact plant habit; dark green leaves; and excellent postproduction longevity.
Claim:
Description: BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct cultivar of Kalanchoe plant, botanically known as Kalanchoe blossfeldiana, and hereinafter referred to by the name `Soft Katharina`.

The new Kalanchoe is a product of a planned breeding program conducted by the Inventor in Hinnerup, Denmark. The objective of the breeding program was to create new freely-flowering Kalanchoe cultivars with compact plant habit and excellent postproduction longevity. The new Kalanchoe is a naturally-occurring whole plant mutation of the Kalanchoe blossfeldiana cultivar Katharina, disclosed in U.S. Plant patent application Ser. No. 09/334,028. The cultivar Soft Katharina was discovered and selected by the Inventor as a flowering plant within a population of plants of the cultivar Katharina in a controlled environment in Hinnerup, Denmark.

Asexual reproduction of the new Kalanchoe by terminal cuttings taken at Hinnerup, Denmark, by the Inventor, has shown that the unique features of this new Kalanchoe are stable and reproduced true to type in successive generations.

BRIEF SUMMARY OF THE INVENTION

The cultivar Soft Katharina has not been observed under all possible environmental conditions. The phenotype may vary somewhat with variations in environment such as temperature, daylength and light intenstity, without, however, any variance in genotype.

The following traits have been repeatedly observed and are determined to be the unique characteristics of `Soft Katharina`. These characteristics in combination distinguish `Soft Katharina` as a new and distinct cultivar:

1. Large light orange flowers.

2. Upright and compact plant habit.

3. Dark green leaves.

4. Excellent postproduction longevity.

Plants of the new Kalanchoe differ primarily from plants of the parent cultivar Katharina in flower color.

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

The accompanying colored photographs illustrate the overall appearance of the new Kalanchoe, showing the colors as true as it is reasonably possible to obtain in colored reproductions of this type. Colors in the photographs may differ slightly from the color values cited in the detailed botanical description which accurately describe the colors of the new Kalanchoe. The photographs were taken under diffuse matural light conditions on an overcast day with electronic flash at approximately noon in Hinnerup, Denmark.

The photograph on the first sheet comprises a side perspective view of a typical potted plant of `Soft Katharina`.

The photograph at the top of the second sheet comprises a top perspective view of a typical potted plant of `Soft Katharina` showing the flowers and foliage.

The photograph at the bottom of the second sheet is a close-up view of the following: side perspective view (top) and top perspective view of a typical flowering cyme (bottom) and immature (top) and fully expanded leaves (bottom) of `Soft Katharina`.

DETAILED BOTANICAL DESCRIPTION

In the following description, color references are made to The Royal Horticultural Society Colour Chart except where general terms of ordinary dictionary significance are used. Unpinched plants used in the photographs and for the following observations and measurements were grown in Hinnerup, Denmark, under commercial practice in a glass-covered greenhouse for about 11 weeks after the start of short day/long night photoperiodic treatment with average temperatures of 20.degree. C.

Botanical classification: Kalanchoe blossfeldiana cultivar Soft Katharina.

Parentage: Naturally-occuring whole plant mutation of Kalanchoe blossfeldiana cultivar Katharina, disclosed in U.S. Plant patent application Ser. No. 09/334,028.

Propagation:

Type cutting.--Terminal cuttings.

Time to initiate roots.--About 14 days.

Rooting habits.--Numerous, fine, fibrous, and well-branched.

Plant description:

Form.--Upright and compact plant habit with numerous compound cymes; freely flowering. Actual plant shape will depend on whether or not plants are pinched (apical terminals removed). Finished plant size is appropriate for one plant per 9 to 10-cm container or three plants per 13-cm container.

Branching habit.--Freely branching. Pinching (removal of terminal apex) is not required but will enhance the lateral branch developement.

Plant height at flowering.--About 25 cm.

Plant diameter at flowering.--About 24 cm.

Foliage description.--Leaves simple, opposite, generally symmetrical. Size: Mature foliage size is reduced after floral induction. Vegetative plants: Length: About 12 cm. Width: About 8.5 cm. Reproductive plants: Length: About 7 cm. Width: About 4.5 cm. Shape: Oval. Apex: Obtuse. Margin: Crenate; undulate. Aspect: Concave. Texture: Leathery, glabrous, succulent, rugose. Color: Young foliage, upper surface: 146A. Young foliage, lower surface: 147C. Mature foliage, upper surface: 147A. Mature foliage, lower surface: 147B.

Flower descriprion:

Flower type and habit.--Single flowers arranged in compound dichasial cymes that arise from leaf axils. Upright flowering stems. Freely flowering. Flowers persistent.

Natural flowering season.--Late autumn/winter/early spring; flower initiation and development can be induced under short day/long night conditions.

Time to flower.--In the summer with 20.degree. C. growing temperatures, about 9 weeks of short day/long night conditions are required to produce flowering plants. During the winter with supplemental lighting and 20.degree. C. growing temperatures, about 11 weeks of short day/long night conditions are required to produce flowering plants. Time to flower is primarly dependent upon temperature and light intensity.

Flower opening.--First flower open is the terminal flower at the main axis and is followed by the opening of the terminal flowers of the side branches of the inflorescence. About 1.5 weeks after the first flower has opened, 50% of the remaining flowers are open.

Post-production longevity.--Plants of the new Kalanchoe maintain good leaf and flower substance for at least five weeks under interior environmental conditions.

Flower diameter.--About 2.2 cm.

Quantity.--Very freely flowering, at least 250 flowers per plant.

Flower buds.--Shape: Narrowly oblong. Length: About 1.6 cm. Width: About 4 mm. Color: 41C.

Petals.--Quantity: Four fused at base. Length: About 8 mm. Shape: Round obovate. Apex: Cuspidate. Margin: Entire. Texture: Glabrous, smooth and satiny. Color: Upper surface: Initially 29B, with development, 35C. Lower surface: Towards apex, 39B; towards base, 27B.

Reproductive organs.--Stamens: Stamen number: Eight. Anther shape: Slightly oblong. Filament color: Yellow green. Pollen color: Yellow. Pistils: Pistil number: Four. Style color: Green. Stigma shape: Round. Ovaries: Superior and four-celled. Ovary size: About 7 mm by 1 mm. Ovary color: Light green.

Seed.--Seed production has not been observed.

Disease resistance: Resistance to known Kalanchoe diseases has not been observed to date under commercial practice.

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