Chrysanthemum plant named ‘Yohannah’

Abstract

A new and distinct cultivar of Chrysanthemum plant named ‘Yohannah’, characterized by its upright, outwardly spreading and rounded plant habit; freely branching habit; freely flowering habit; decorative-type inflorescences with elongated oblong-shaped ray florets; orange-colored ray florets; natural season flowering in early September in the Northern Hemisphere; and good garden performance.

Description

Botanical classification/cultivar designation: Chrysanthemum×morifolium cultivar Yohannah.

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct cultivar of Chrysanthemum plant, botanically known as Chrysanthemum×morifolium, commercially known as a garden-type Chrysanthemum and hereinafter referred to by the name ‘Yohannah’.

The new cultivar is a product of a planned breeding program conducted by the Inventor in Salinas, Calif. and Alva, Fla. The objective of the breeding program is to create new garden-type Chrysanthemum cultivars having inflorescences with desirable inflorescence forms, attractive floret coloration and good garden performance.

The new Chrysanthemum originated from a cross-pollination made in December, 1999 in Salinas, Calif., of the Chrysanthemum×morifolium cultivar Yogretchen, disclosed in U.S. Plant Pat. No. 13,672, as the female, or seed, parent with the Chrysanthemum×morifolium cultivar Jennifer, disclosed in U.S. Plant Pat. No. 8,987, as the male, or pollen, parent. The new Chrysanthemum was discovered and selected by the Inventor as a single flowering plant within the progeny of the stated cross-pollination grown in a controlled environment in Alva, Fla. in October, 2000. The selection of this plant was based on its desirable inflorescence form, attractive floret coloration and good garden performance.

Asexual reproduction of the new cultivar by terminal vegetative cuttings in a controlled environment in Alva, Fla. since January, 2001, has shown that the unique features of this new Chrysanthemum are stable and reproduced true to type in successive generations.

SUMMARY OF THE INVENTION

The cultivar Yohannah 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 ‘Yohannah’. These characteristics in combination distinguish ‘Yohannah’ as a new and distinct cultivar of Chrysanthemum:

• • 1. Upright, outwardly spreading and rounded plant habit.
  • 2. Freely branching habit.
  • 3. Freely flowering habit.
  • 4. Decorative-type inflorescences with elongated oblong-shaped ray florets.
  • 5. Orange-colored ray florets.
  • 6. Natural season flowering in early September in the Northern Hemisphere.
  • 7. Good garden performance.

In side-by-side comparisons conducted in Alva, Fla. under natural season conditions, plants of the new Chrysanthemum differed from plants of the female parent, the cultivar Yogretchen, in the following characteristics:

• • 1. Plants of the new Chrysanthemum flowered about five days earlier than plants of the cultivar Yogretchen.
  • 2. Plants of the new Chrysanthemum had larger inflorescences than plants of the cultivar Yogretchen.
  • 3. Plants of the new Chrysanthemum and the cultivar Yogretchen differed in ray floret coloration as plants of the cultivar Yogretchen had lighter orange-colored ray florets.

In side-by-side comparisons conducted in Alva, Fla. under natural season conditions, plants of the new Chrysanthemum differed from plants of the male parent, the cultivar Jennifer, in the following characteristics:

• • 1. Plants of the new Chrysanthemum were more rounded than plants of the cultivar Jennifer.
  • 2. Plants of the new Chrysanthemum flowered more uniformly than plants of the cultivar Jennifer.
  • 3. Plants of the new Chrysanthemum flowered about two weeks earlier than plants of the cultivar Jennifer.
  • 4. Plants of the new Chrysanthemum had smaller inflorescences than plants of the cultivar Jennifer.

Plants of the new Chrysanthemum can be compared to plants of the Chrysanthemum cultivar Robin, disclosed in U.S. Plant Pat. No. 8,300. In side-by-side comparisons conducted in Alva, Fla. under natural season conditions, plants of the new Chrysanthemum differed from plants of the cultivar Robin in the following characteristics:

• • 1. Plants of the new Chrysanthemum were larger and more rounded than plants of the cultivar Robin.
  • 2. Plants of the new Chrysanthemum had larger inflorescences than plants of the cultivar Robin.

Plants of the new Chrysanthemum can also be compared to plants of the Chrysanthemum cultivar Orange Urano, disclosed in U.S. Plant Pat. No. 13,019. In side-by-side comparisons conducted in Alva, Fla. under natural season conditions, plants of the new Chrysanthemum differed from plants of the cultivar Orange Urano in the following characteristics:

• • 1. Plants of the new Chrysanthemum were not as outwardly spreading as plants of the cultivar Orange Urano.
  • 2. Inflorescences of plants of the new Chrysanthemum had fewer disc florets than inflorescences of plants of the cultivar Orange Urano.
  • 3. Plants of the new Chrysanthemum flowered about five days later than plants of the cultivar Orange Urano.
  • 4. Ray florets of plants of the new Chrysanthemum resisted fading better than ray florets of plants of the cultivar Orange Urano.

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

The accompanying photographs illustrate the overall appearance of the new Chrysanthemum. These photographs show 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 Chrysanthemum.

The photograph on the first sheet comprises a side perspective view of a typical flowering plant of ‘Yohannah’ grown in a container.

The photograph on the second sheet comprises a close-up view of typical inflorescences of the cultivar ‘Yohannah’.

DETAILED BOTANICAL DESCRIPTION

In the following description, color references are made to The Royal Horticultural Society Colour Chart, 1995 Edition, except where general terms of ordinary dictionary significance are used. The following observations and measurements describe plants grown in Leamington, Ontario, Canada during the late summer and fall in an outdoor nursery and under conditions and practices which approximate those generally used in commercial garden-type Chrysanthemum production. One cutting was planted in a 15.25-cm container in mid-July. During the production of the plants, plants were exposed to natural season photoperiodic conditions with day temperatures averaging 26° C. and night averaging 18° C. Measurements and numerical values represent averages for typical flowering plants.

• Botanical classification: Chrysanthemum×morifolium cultivar Yohannah.
• Commercial classification: Decorative-type garden Chrysanthemum.
• Parentage:
  • • Female, or seed, parent.—Chrysanthemum×morifolium cultivar Yogretchen, disclosed in U.S. Plant Pat. No. 13,672.
    • Male, or pollen, parent.—Chrysanthemum×morifolium cultivar Jennifer, disclosed in U.S. Plant Pat. No. 8,987.
• Propagation:
  • • Type.—Terminal vegetative cuttings.
    • Time to initiate roots, year-round.—About four days at 21° C.
    • Time to produce a rooted cutting, year-round.—About ten to twelve days at 21° C.
    • Root description.—Fine, fibrous; white in color.
    • Rooting habit.—Freely branching.
• Plant description:
  • • Plant form/growth habit.—Perennial herbaceous decorative-type garden Chrysanthemum. Inverted triangle with rounded crown. Stems initially upright, then outwardly spreading. Freely branching with about 13 lateral branches per plant. Moderately vigorous.
    • Plant height.—About 17.5 cm.
    • Plant diameter.—About 25 cm.
    • Lateral branches.—Length: About 13.5 cm. Diameter: About 4 mm. Internode length: About 1.3 cm. Strength: Strong. Texture: Pubescent. Color: More green than 146A.
    • Foliage description.—Leaf arrangement: Alternate. Length: About 5.5 cm. Width: About 4.3 cm. Apex: Mucronate. Base: Attenuate to truncate. Margin: Palmately and deeply lobed; sinuses parallel to convergent. Texture, upper and lower surfaces: Pubescent. Color: Developing foliage, upper surface: Darker green than 147A. Developing foliage, lower surface: Close to 147A. Fully expanded foliage, upper surface: Darker green than 147A. Fully expanded foliage, lower surface: Lighter green than 147A. Venation, upper and lower surfaces: Close to 146A. Petiole: Length: About 2 cm. Diameter: About 3 mm. Texture, upper and lower surfaces: Pubescent. Color, upper and lower surfaces: Close to 146A.
• Inflorescence description:
  • • Appearance.—Decorative-type inflorescence form with elongated oblong-shaped ray florets. Inflorescences borne on terminals above foliage, arising from leaf axils. Disc and ray florets developing acropetally on a capitulum. Inflorescences face mostly upright or outwardly. Inflorescences hemispherical in shape. Freely flowering habit; about six inflorescences develop per lateral branch. Inflorescences persistent. Inflorescences not fragrant.
    • Flowering response.—Under natural season conditions, plants flower in early September in the Northern Hemisphere.
    • Inflorescence bud (before showing color).—Height: About 6 mm. Diameter: About 7 mm. Shape: Oblate. Color (lower surface of phyllaries): Close to 147A.
    • Inflorescence size.—Diameter: About 4.4 cm. Depth (height): About 1.9 cm. Disc diameter: About 3 mm. Receptacle diameter: About 5 mm. Receptacle height: About 7 mm.
    • Ray florets.—Shape: Elongated oblong. Length: About 2.2 cm. Corolla tube length: About 4 mm. Width: About 8 mm. Apex: Emarginate. Margin: Fused. Texture: Smooth, glabrous; satiny. Surface: Concave. Orientation: Initially upright, then perpendicular to the peduncle. Number of ray florets per inflorescence: About 210 in numerous whorls. Color: When opening, upper and lower surfaces: Close to 144A to 154A to 10A overlain with 46A. Fully opened, upper surface: 10A overlain with 46A. Fully opened, lower surface: 10A to 10B underlain with 46A.
    • Disc florets.—Shape: Tubular; apex dentate, five-pointed. Length: About 4.5 mm. Width, apex: About 1.5 mm. Width, base: About 1 mm. Number of disc florets per inflorescence: Very few, less than 20; inconspicuous. Color: Immature: Close to 154A. Mature: Apex: Close to 9A. Mid-section: Close to 154D. Base: Close to 155D.
    • Phyllaries.—Quantity per inflorescence: About 22. Length: About 7 mm. Width: About 3 mm. Shape: Deltoid, elongated. Apex: Acute. Base: Truncate, fused. Margin: Entire. Texture, upper surface: Smooth, waxy. Texture, lower surface: Pubescent. Color, upper surface: More green than 146A. Color, lower surface: Close to 147A.
    • Peduncle.—Length: First peduncle: About 6.75 cm. Fourth peduncle: About 10.5 cm. Diameter: About 2.5 mm. Strength: Strong. Aspect: About 40° from vertical. Texture: Pubescent. Color: Close to 146A.
    • Reproductive organs.—Androecium: Present on disc florets only. Anther color: Close to 12A. Pollen: None observed. Gynoecium: Present on both ray and disc florets.
    • Seed/fruit.—Seed and fruit production has not been observed.
• Disease/pest resistance: Plants of the new Chrysanthemum have not been shown to be resistant to pathogens and pests common to Chrysanthemums.
• Garden performance: Plants of the new Chrysanthemum have been observed to be have good garden performance and to be tolerant to rain, wind and temperatures ranging from 0 to greater than 38° C.

Claims

1. A new and distinct cultivar of Chrysanthemum plant named ‘Yohannah’, as illustrated and described.