<i>Gerbera </i>plant named ‘MAJBUR20AA’

Abstract

A new and distinct cultivar of Gerbera plant named ‘MAJBUR20AA’, characterized by its broadly upright and uniformly mounding plant habit; moderately vigorous to vigorous growth habit; dense and bushy appearance; numerous inflorescences with deep red purple-colored ray florets; upright and moderately strong peduncles; good garden performance and relative tolerance to low temperatures.

Claims

1. A new and distinct Gerbera plant named ‘MAJBUR20AA’ as illustrated and described.

Description

BRIEF DESCRIPTION OF THE PHOTOGRAPH

(1) The accompanying photograph illustrates the overall appearance of the new Gerbera plant showing the colors as true as it is reasonably possible to obtain in colored reproductions of this type. Colors in the photograph may differ slightly from the color values cited in the detailed botanical description which accurately describe the colors of the new Gerbera plant. The photograph is a side perspective view of a typical flowering plant of ‘MAJBUR20AA’ grown in a container.

DETAILED BOTANICAL DESCRIPTION

(2) The aforementioned photograph and following observations and measurements describe plants grown during the winter and early spring in 19-cm containers in a glass-covered greenhouse in De Kwakel, The Netherlands and under cultural practices typical of commercial garden Gerbera production. During the production of the plants, day and night temperatures ranged from 12° C. to 16° C. Plants were six months old when the photograph was taken and 20 weeks old when the description was 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: Gerbera hybrida ‘MAJBUR20AA’. Parentage: Female, or seed, parent.—Proprietary selection of Gerbera hybrida identified as code number 14T1407, not patented. Male, or pollen, parent.—Proprietary selection of Gerbera hybrida identified as code number 15T1531, not patented. Propagation: Type.—By cuttings and in vitro meristem culture. Time to initiate roots, by cuttings, summer and winter.—About 3.5 weeks at minimum temperatures of 20° C. Time to initiate roots, by tissue culture, summer and winter.—About 2.5 to 3 weeks at minimum temperatures of 20° C. Time to produce a rooted young plant, by cuttings, summer and winter.—About 3.5 weeks after rooting, at temperatures about 20° C. to 26° C. Time to produce a rooted young plant, by tissue culture, summer and winter.—About five to six weeks at temperatures about 20° C. to 26° C. Root description.—Fibrous; typically white in color, actual color of the roots is dependent on substrate composition, water quality, fertilizer type and formulation, substrate temperature and physiological age of roots. Plant description: Appearance.—Herbaceous perennial that is typically grown as a container or garden plant; broadly upright and uniformly mounding plant habit; roughly flattened globular in shape; numerous leaves arranged in basal rosettes; dense and bushy habit; inflorescences held above the foliar plane on erect and strong basal peduncles; moderately vigorous to vigorous growth habit and moderate growth rate. Plant height, soil level to top of foliar plane.—About 31.2 cm. Plant height, soil level to top of inflorescences.—About 45 cm. Plant width or spread.—About 64.2 cm. Leaf description: Arrangement.—Alternate, basal, simple. Length.—About 22.2 cm. Width.—About 9.5 cm. Shape.—Narrowly ovate to narrowly oblong. Apex.—Obtuse. Base.—Broadly attenuate. Margin.—Coarsely and shallowly repand to coarsely and shallowly angulate or entire; proximally, coarsely and irregularly angulate to runcinate; sinuses deep and parallel. Texture and luster, upper surface.—Sparsely pubescent; slightly rugose; moderately glossy. Texture and luster, lower surface.—Moderately to densely pubescent; matte. Venation pattern.—Pinnate. Color.—Developing leaves, upper surface: Close to a blend of 141A and 143A. Developing leaves, lower surface: Close to a blend of 138A and 147B. Fully expanded leaves, upper surface: Close to NN137B; venation, close to 144A. Fully expanded leaves, lower surface: Close to a blend of 147C and 148B; venation, close to 146C. Petioles.—Length: About 13 cm. Diameter: About 4 mm. Texture and luster, upper and lower surfaces: Moderately to densely pubescent; slightly glossy. Strength: Moderately strong to strong. Color, upper and lower surfaces: Close to 144A. Inflorescence description: Appearance.—Composite inflorescence form with oblanceolate-shaped ray florets; solitary inflorescences borne on upright and moderately strong peduncles and held above the foliar plane; ray and disc florets arranged acropetally on a capitulum; inflorescences face upright. Fragrance.—None detected. Flowering season.—Plants begin flowering about three months after planting; under garden conditions in The Netherlands, plants flower from spring to late autumn; plants can be flowered year-round in the greenhouse. Inflorescence longevity.—Depending on the temperature, inflorescences last about two to four weeks on the plant; inflorescences persistent. Quantity of inflorescences.—Freely flowering habit with about 16 inflorescences developing per plant during the flowering season. Inflorescence buds.—Height: About 1.9 cm. Diameter: About 2 cm. Shape: Globular. Texture and luster: Moderately to densely pubescent; matte. Color: Close to 144B; towards the base, close to 146A; immature ray florets, close to 183D. Inflorescence size.—Diameter: About 9.2 cm. Depth (height): About 2.9 cm. Diameter of disc: About 2.5 cm. Receptacles.—Height: About 3 mm. Diameter: About 9 mm. Shape: Broadly rhomboidal. Color: Close to 145D. Ray florets.—Quantity and arrangement: About 200 per inflorescence; ray florets arranged in about four outer whorls and two inner whorls of smaller ray florets. Orientation: Proximally, about 40° from vertical; distally, close to horizontal. Outer whorls of ray florets: Length: About 4.5 cm. Width: About 6 mm. Shape: Oblanceolate. Apex: Narrowly obtuse to bluntly acute. Base: Narrowly cuneate. Margin: Entire; not undulate. Texture and luster, upper surface: Smooth, glabrous; velvety; matte. Texture and luster, lower surface: Smooth, glabrous; slightly velvety; slightly carinate; slightly glossy. Color: When opening, upper surface: Close to a blend of 53A and 60A. When opening, lower surface: Close to 60C to lighter than 60C. Fully opened, upper surface: Close to 60A; venation, close to 60A; color does not change with subsequent development. Fully opened, lower surface: Close to 54A; towards the base, close to 54D; venation, similar to lamina colors; color does not change with subsequent development. Inner whorls of ray florets: Length: About 3.1 cm. Width: About 3.25 mm. Shape: Oblanceolate. Apex: Narrowly obtuse to bluntly acute. Base: Narrowly cuneate. Margin: Entire; not undulate. Texture and luster, upper surface: Smooth, glabrous; velvety; matte. Texture and luster, lower surface: Smooth, glabrous; slightly velvety; slightly carinate; slightly glossy. Color: When opening, upper surface: Close to a blend of 59C and 60A; apical edge, close to N155A. When opening, lower surface: Close to 63C to lighter than 63C. Fully opened, upper surface: Close to 60B; apical edge, close to N155A; venation, close to 60B; color does not change with subsequent development. Fully opened, lower surface: Close to 64D to lighter than 64D; venation, similar to lamina colors; color does not change with subsequent development. Disc florets.—Quantity and arrangement: About 300 disc florets at center of the inflorescence arranged in about a ten-whorl spiral. Length: About 1.9 cm. Width: About 7 mm. Shape: Tubular with one or two narrow free lobes and one broader free lobe. Apex: Acute and recurved; upper 42.5%, free. Base: Lower 57.5%, fused. Margin, free lobes: Entire; not undulate. Texture, upper surface: Smooth, glabrous; moderately velvety; matte. Texture, lower surface: Smooth, glabrous; slightly velvety; slightly glossy. Color: When opening, inner surface: Apex, close to 60C, tipped with close to NN155A; mid-section and base, close to 157D. When opening, outer surface: Apex, close to 64C, tipped with close to NN155A; mid-section and base, close to 157D. Fully opened, inner surface: Apex, close to 64B, tipped with close to NN155A; mid-section and base, close to 157D. Fully opened, outer surface: Apex, close to 65D, tipped with close to NN155A; mid-section and base, close to 157D. Pappus.—Quantity of hairs per floret: Numerous. Length: About 7 mm. Diameter: Less than 1 mm. Texture and luster: Soft; matte. Color: Close to 183D; towards the base, close to 150D. Phyllaries.—Quantity and arrangement: About 80 per inflorescence arranged in about three whorls. Length: About 1.3 cm. Width (at base): About 2.25 mm. Shape: Linear. Apex: Narrowly acute. Base: Cuneate. Margin: Entire. Texture and luster, upper surface: Smooth, glabrous; moderately glossy. Texture and luster, lower surface: Moderately to densely pubescent; matte. Color, upper surface: Close to 144B; midvein, close to 143A. Color, lower surface: Close to 143B; towards the base, close to 137B. Peduncles.—Length: About 40.7 cm. Diameter: Proximally, about 6 mm; distally, about 4 mm. Strength: Moderately strong. Angle: About 15° from vertical. Texture and luster: Moderately to densely pubescent; moderately glossy. Color: Close to 144A; distally, close to 146B. Reproductive organs.—Androecium (present on disc florets only): Quantity per floret: Five. Filament length: About 6 mm. Filament color: Close to 155C. Anther shape: Linear; basifixed. Anther size: About 3 mm by 0.3 mm. Anther color: Close to 11A. Pollen amount: Scarce. Pollen color: Close to 11B. Gynoecium (present on ray and disc florets): Quantity per floret: One. Pistil length: About 1.2 cm. Stigma diameter: About 0.3 mm. Stigma shape: Cleft. Stigma color: Close to 155A. Style length: About 1.2 cm. Style color: Close to N155B. Ovary color: Close to 157A. Seeds and fruits.—To date, seed and fruit production has not been observed on plants of the new Gerbera. Pathogen & pest resistance: To date, resistance to pathogens and pests common to Gerbera plants has not been observed on plants of the new Gerbera grown under commercial production conditions. Garden performance: Plants of the new Gerbera have been observed to have good garden performance and to tolerate temperatures ranging from about −5° C. to about 35° C. and to be cold hardy to USDA Hardiness Zone 7.