<i>Chrysanthemum </i>plant named ‘DLFCHIA4’

Abstract

A new and distinct cultivar of Chrysanthemum plant named DLFCHIA4, characterized by its upright plant habit; vigorous growth habit; freely branching habit; dark green-colored leaves; uniform and freely flowering habit; strong upright flowering stems with numerous inflorescences; decorative-type inflorescences with dark red-colored ray florets; and relative resistance to Fusarium oxysporum f. sp. chrysanthemi.

Claims

1. A new and distinct Chrysanthemum plant named DLFCHIA4 as illustrated and described.

Description

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

(1) The accompanying photographs illustrate the overall appearance of the new Chrysanthemum plant showing the colors as true as it is reasonably possible to obtain in colored reproductions of this type.

(2) The photograph on the first sheet (FIG. 1 of 2) comprises a side perspective view of a typical flowering stem of DLFCHIA4 grown as a spray-type cut flower.

(3) The photograph on the second sheen (FIG. 2 of 2) is a close-up view of lower (top of the photographic sheet) and upper (bottom of the photographic sheet) surfaces of typical inflorescences (left) and leaves (right).

DETAILED BOTANICAL DESCRIPTION

(4) The aforementioned photographs and following observations and measurements describe plants grown during the winter in ground beds in a glass-covered greenhouse in Maasdijk, The Netherlands and under cultural practices typical of commercial cut Chrysanthemum production. Plants were initially given long day/short night treatments followed by short day/long night treatments to induce flower initiation and development. During the production of the plants, day temperatures ranged from 18 C. to 25 C., night temperatures ranged from 2 C. to 20 C. and light levels averaged 8 klux. Plants were grown as single-stem spray-type plants and were nine weeks old when the photographs and the description were taken. In the following description, color references are made to The Royal Horticultural Society Colour Chart, 2015 Edition, except where general terms of ordinary dictionary significance are used. Botanical classification: Chrysanthemum X morifolium DLFCHIA4. Parentage: Female, or seed, parent.Delibarca, not patented. Male, or pollen, parent.Proprietary selection of Chrysanthemum x morifolium identified as code number DB 42809, not patented. Propagation: Type.Terminal vegetative cuttings. Time to initiate roots, summer.About six days at temperatures about 24 C. Time to initiate roots, winter.About eight days at temperatures about 22 C. Time to produce a rooted young plant, summer.About twelve days at temperatures about 24 C. Time to produce a rooted young plant, winter.About two weeks at temperatures about 22 C. Root description.Fine, fibrous; typically creamy white in color, actual color of the roots is dependent on substrate composition, water quality, fertilizers, substrate temperature and physiological age of roots. Rooting habit.Freely branching, medium density. Plant description: Plant and growth habit.Herbaceous decorative-type cut flower that is typically grown as a single stem spray-type; upright plant habit; vigorous growth habit and rapid growth rate. Plant height, soil level to top of foliar plane.About 80.3 cm. Plant height, soil level to top of inflorescence plane.About 83.4 cm. Plant (spray) diameter.About 18.8 cm. Flowering stem length.About 76.2 cm. Flowering stem diameter.About 7 mm. Flowering stem internode length.About 3.2 cm. Flowering stem strength.Strong. Flowering stem aspect.Erect. Flowering stem texture and luster.Moderately pubescent; slightly glossy. Flowering stem color, developing.Close to 143B. Flowering stem color, developed.Close to between 143A and 146B; ridges, tinged with close to 183B. Leaf description.Arrangement: Alternate; simple. Length: About 12.2 cm. Width: About 8.5 cm. Shape: Ovate to broadly ovate. Apex: Short apiculate. Base: Attenuate. Margin: Palmately lobed, coarsely crenate; sinuses convergent and medium in depth. Texture and luster, upper surface: Moderately pubescent, not rugose; moderately velvety; very slightly glossy. Texture and luster, lower surface: Moderately pubescent, prominent venation; slightly velvety; matte. Venation pattern: Pinnate, reticulate. Color: Developing leaves, upper surface: Close to between 137B and 143A, closest to 137B. Developing leaves, lower surface: Close to 138B. Fully developed leaves, upper surface: Close to NN137A; venation, close to 147C. Fully developed leaves, lower surface: Close to 147B; venation, close to 146C. Petioles: Length: About 1.7 cm. Diameter: About 2.5 mm by 3 mm. Strength: Moderately strong. Texture and luster, upper and lower surfaces: Densely pubescent; slightly glossy. Color, upper surface: Close to 147C; edges, close to NN137B. Color, lower surface: Close to 146C; edges, close to 137A. Stipules: Quantity and appearance: Two leafy stipules, opposite, at the petiole attachment to the stem. Length: About 1.5 cm. Width: About 1.9 cm. Shape: Flabellate. Texture and luster, upper surface: Moderately pubescent, not rugose; moderately velvety; very slightly glossy. Texture and luster, lower surface: Moderately pubescent, prominent venation; slightly velvety; matte. Color, upper surface: Close to NN137A. Color, lower surface: Close to 147B. Inflorescence description: Appearance.Decorative inflorescence form with oblanceolate-shaped ray florets and tubular disc florets (disc florets are inconspicuous); inflorescences borne perpendicular to peduncles and face mostly upright to slightly outwardly; ray and disc florets develop acropetally on a capitulum. Fragrance.Faintly fragrant; typical of Chrysanthemums. Flowering response.Under natural conditions, plant flower in the autumn/winter in the Northern Hemisphere; at other times of the year, inflorescence initiation and development can be induced under short day/long night conditions (at least 13.5 hours of darkness); uniform flowering habit and short response time, plants exposed to two weeks of long day/short night conditions after planting followed by photoinductive short day/long night conditions flower about 52 days later when grown as a spray-type. Postproduction longevity.Good postproduction longevity; in an interior environment, inflorescences and foliage will maintain good color and substance for about two weeks; inflorescences persistent. Quantity of inflorescences.Freely flowering habit; when grown as a spray-type, about 17 inflorescences develop per flowering stem. Inflorescence size.Diameter: About 7.5 cm. Depth (height): About 2.5 cm. Disc diameter: About 3 mm. Receptacles.Height: About 4 mm. Diameter: About 5 mm. Shape: Flattened globular. Color: Close to 144C. Inflorescence buds.Height: About 9 mm. Diameter: About 1 cm. Shape: Roughly globular. Texture and luster: Distally, smooth and glabrous; proximally, moderately pubescent; slightly glossy. Color: Close to 138C and 143A; immature ray florets, close to 183B. Ray florets.Quantity and arrangement: About 280 arranged in about eight whorls. Length: About 2.4 cm; varying between 0.8 cm and 3.4 cm. Width: About 6 mm; varying between 1 mm and 9 mm. Shape: Oblanceolate; slightly concave and carinate. Apex: Retuse to emarginate. Base: Attenuate. Margin: Entire; not undulate. Aspect: Initially upright to about 90 from vertical. Texture and luster, upper surface: Smooth, glabrous; velvety; matte. Texture and luster, lower surface: Smooth, glabrous; moderately velvety; slightly glossy. Color: When opening, upper surface: Close to 53A. When opening, lower surface: Close to 178B. Fully opened, upper surface: Close to 53A; venation, close to 53A; color does not change with development. Fully opened, lower surface: Close to 181B; venation, close to 184A; color does not change with development. Disc florets.Quantity and arrangement: About twelve spirally arranged in about two whorls at the center of the receptacle; disc florets inconspicuous. Length: About 3 mm. Diameter: About 1 mm. Shape: Lower 75% fused into a tube; upper 25% free. Apex: Narrowly acute. Margin, distally: Entire. Texture and luster, inner and outer surfaces: Smooth, glabrous; glossy. Color, when opening, inner and outer surfaces: Apex: Close to 144B. Mid-section: Close to 145D. Base: Close to 145C. Color, fully opened, inner and outer surfaces: Apex: Close to 144B. Mid-section: Close to 145D. Base: Close to 145C. Involucral bracts.Quantity and arrangement: About 24 arranged in two whorls. Length: About 7 mm. Width: About 3 mm. Shape: Ovate. Apex: Obtuse. Base: Cuneate. Margin: Entire. Texture and luster, upper surface: Smooth, glabrous; glossy. Texture and luster, lower surface: Densely pubescent; matte. Color, upper surface: Close to 143A; margins, translucent and close to 145C. Color, lower surface: Close to 137C; margins, translucent and close to 145C. Peduncles.Length, terminal peduncle: About 5.4 cm. Diameter, terminal peduncle: About 2 mm. Length, third peduncle: About 6.8 cm. Diameter, third peduncle: About 2 mm. Strength: Strong. Aspect, terminal peduncle: Mostly upright. Aspect, third peduncle: About 25 from the flowering stem axis. Texture and luster: Densely pubescent; matte. Color: Close to 137C. Reproductive organs.Androecium: Present on disc florets only. Quantity: About five per floret. Filament length: About 1.5 mm. Filament color: Close to 145D. Anther size: About 0.5 mm by 0.75 mm. Anther shape: Narrowly oblong. Anther color: Close to 13A. Pollen amount: Scarce. Pollen color: Close to 14B. Gynoecium: Present on both ray and disc florets. Quantity: One per floret. Pistil length: About 4 mm. Style length: About 3.5 mm. Style color: Close to 144C. Stigma diameter: About 1 mm. Stigma shape: Cleft, decurrent. Stigma color: Close to 151D. Ovary color: Close to 145C. Seeds and fruits.To date, seed and fruit production have not been observed on plants of the new Chrysanthemum. Pathogen & pest resistance: Plants of the new Chrysanthemum have been observed to be relatively resistant to Fusarium oxysporum f. sp. chrysanthemi. To date, plants of the new Chrysanthemum have not been observed to be resistant to pests and other pathogens common to plants grown under commercial conditions. Temperature tolerance: Plants of the new Chrysanthemum have been observed to tolerate temperatures ranging from about 12 C. to 35 C. and to be suitable for USDA Hardiness Zones 8 to 10.