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Aglaonema plant named `Key Largo`
PP17550 Aglaonema plant named `Key Largo`
Patent Drawings:Drawing: PP17550-3    
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Inventor: Parthasarathy, et al.
Date Issued: April 3, 2007
Application: 11/174,969
Filed: July 5, 2005
Inventors: Parthasarathy; Gopalaswamy (Chamrajpet, Bangalore 560018, IN)
Mukundan; Parthasarathy (Chamrajpet, Bangalore 560018, IN)
Assignee:
Primary Examiner: Haas; Wendy
Assistant Examiner:
Attorney Or Agent: Whealy; C. A.
U.S. Class: PLT/376
Field Of Search: PLT/376
International Class: A01H 5/00
U.S Patent Documents: PP8975; PP10280
Foreign Patent Documents:
Other References: http://www.aroid.org/gallery/mukundan/. cited by examiner.









Abstract: A new and distinct cultivar of Aglaonema plant named `Key Largo`, characterized by its compact, upright and outwardly arching plant form; vigorous growth habit; relatively short internodes; full, dense and bushy appearance; oblong leaves with cuspidate apices; upper leaf surfaces dark green in color with distinct and contrasting silvery gray centers and random silver-colored flecks and spots; short green-colored leaf petiodes; and tolerance to low temperatures.
Claim: It is claimed:

1. A new and distinct cultivar of Aglaonema plant named `Key Largo`, as illustrated and described.
Description: Botanicaldesignation: Aglaonema hybrida.

Cultivar denomination: `Key Largo`.

BACKGROUND OF THE INVENTION

The present Invention relates to a new and distinct cultivar of Aglaonema plant, botanically known as Aglaonema hybrida and hereinafter referred to by the name `Key Largo`.

The new Aglaonema is the result of a planned breeding program conducted by the Inventors in Chamrajpet, Bangalore, India. The objective of the breeding program is to create near vigorous Aglaonema cultivars with compact and dense plant habit,unique leaf coloration, interesting leaf shapes, resistance to pathogens and pests common to Algaonemas and tolerance to low temperatures.

The new Aglaonema originated from a cross-pollination made by the Inventors on Jun. 12, 1985 of the Aglaonema nitidum (Jack) Kunth. f. cinereum Jervis cultivar Ernesto's Favorite, not patented, as the female, or seed, parent with the Aglaonemacommutatum var. maculatum cultivar Malay Lady, not patented, as the male, or pollen, parent. The new Aglaonema was discovered and selected by the Inventors in 1986 as a single plant within the progeny of the stated cross-pollination in a controlledenvironment in Chamrajpet, Bangalore, India. The new Aglaonema was selected on the basis of its plant habit, leaf shape and uniquely colored foliage.

Asexual propagation of the new cultivar by divisions and cuttings since January, 1989 in a controlled environment in Chamrajpet, Bangalore, India, has shown that the unique features of this new Aglaonema are stable and reproduced true to type insuccessive generations.

SUMMARY OF THE INVENTION

The following traits have been repeatedly observed and are determined to be the unique characteristics of `Key Largo`. These characteristics in combination distinguish `Key Largo` as a new and distinct cultivar of Aglaonema: 1. Compact, uprightand outwardly arching plant form. 2. Vigorous growth habit. 3. Relatively short internodes; full, dense and bushy appearance. 4. Oblong leaves with cuspidate apices. 5. Unique leaf coloration; upper leaf surfaces dark green in color with distinctand contrasting silvery gray centers and random silver-colored flecks and spots. 6. Short green-colored leaf petioles. 7. Tolerant to low temperatures.

In side-by-side comparisons conducted by the Inventors in Chamrajpet, Bangalore, India, plants of the new Aglaonema differed from plants of the female parent, the cultivar Ernesto's Favorite, in the following characteristics: 1. Plants of thenew Aglaonema were more compact than plants of the cultivar Ernesto's Favorite. 2. Plants of the new Aglaonema were denser than plants of the cultivar Ernesto's Favorite. 3. Leaves of plants of the new Aglaonema were broader than leaves of plants ofthe cultivar Ernesto's Favorite. 4. Plants of the new Aglaonema and the cultivar Ernesto's Favorite differed in leaf and leaf petiole coloration. 5. Plants of the new Aglaonema were more tolerant to low temperatures than plants of the cultivarErnesto's Favorite.

In side-by-side comparisons conducted by the Inventors in Chamrajpet, Bangalore, India, plants of the new Aglaonema differed from plants of the male parent, the cultivar Malay Lady, in the following characteristics: 1. Plants of the newAglaonema were more vigorous than plants of the cultivar Malay Lady. 2. Plants of the new Aglaonema were denser than plants of the cultivar Malay Lady. 3. Leaves of plants of the new Aglaonema were broader than leaves of plants of the cultivar MalayLady. 4. Plants of the new Aglaonema and the cultivar Malay Lady differed in leaf and leaf petiole coloration. 5. Plants of the new Aglaonema were more tolerant to low temperatures than plants of the cultivar Malay Lady.

Plants of the new Aglaonema can be compared to plants of the cultivar Rhapsody in Green, disclosed in U.S. Plant Pat. No. 8,975. In side-by-side comparisons conducted in Chamrajpet, Bangalore, India, plants of the new Aglaonema differed fromplants of the Agalonema cultivar Rhapsody in Green in the following characteristics: 1. Leaves of plants of the new Aglaonema were held mostly horizontally whereas leaves of plants of the cultivar Rhapsody in Green were held mostly erect. 2. Leaves ofplants of the new Aglaonema were broader and had shorter petioles than leaves of plants of the cultivar Rhapsody in Green. 3. Plants of the new Aglaonema and the cultivar Rhapsody in Green differed in leaf and leaf petiole coloration.

Plants of the new Aglaonema can also be compared to plants of the cultivar Black Lance, disclosed in U.S. Plant Pat. No. 10,280. In side-by-side comparisons conducted in Chamrajpet, Bangalore, India, plants of the new Aglaonema differed fromplants of the Aglaonema cultivar Black Lance in the following characteristics: 1. Leaves of plants of the new Aglaonema were broader and had shorter petioles than leaves of plants of the cultivar Black Lance. 2. Plants of the new Aglaonema and thecultivar Black Lance differed in leaf and leaf petiole coloration.

BRIEF DESCRIPTION OF THE PHOTOGRAPH

The accompanying colored photograph illustrates the overall appearance of the new Aglaonema, showing the colors as true as it is reasonably possible to obtain in colored reproductions of this type. Colors in the photograph may differ slightlyfrom the color values cited in the detailed botanical description which accurately describe the colors of the new Aglaonema. The photograph comprises a side perspective view of a typical plant of `Key Largo`.

DETAILED BOTANICAL DESCRIPTION

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

The following observations and measurements describe plants of the new Aglaonema that were grown in 25-cm containers, in Homestead, Fla., in a polypropylene-covered shadehouse with light levels about 2,500 foot-candles. During the production ofthe plants, temperatures ranged from 2.degree. C. to 43.degree. C. Plants used for the photograph and description were about 14 months from planting. Color references are made to The Royal Horticultural Society Colour Chart, 1995 Edition, except wheregeneral terms of ordinary dictionary significance are used. Botanical classification: Aglaonema hybrida cultivar Key Largo. Parentage: Female, or seed, parent.--Aglaonema nitidum (Jack) Kunth f. cinereum Jervis cultivar Ernesto's Favorite, notpatented. Male, or pollen, parent.--Aglaonema commutatum var. maculatum cultivar Malay Lady, not patented. Propagation: Type.--by divisions. Time to initiate roots.--Summer: About 18 to 20 days at 25.degree. C. to 36.degree. C. Winter: About 30 to35 days at 15.degree. to 28.degree. C. Time to produce a rooted plant.--Summer: About 30 to 35 days at 25.degree. C. to 36.degree. C. Winter: About 40 to 45 days at 15.degree. C. to 28.degree. C. Root description.--Thick, fibrous, fleshy; off-whitein color. Rooting habit.--Freely-branching; dense. Plant description: Plant form.--Erect when young, becoming outwardly arching as leaves develop; inverted triangle, symmetrical and uniform. Vigor/growth rate.--Vigorous; relatively rapid growth rate. Plant size appropriate for 25-cm containers. Growth habit.--Plants typically produce about two to three offshoots per plant; full, dense and bushy appearance. Plant height.--About 43 cm. Plant width (spread).--About 57 cm. Stem description.--Length:About 18 cm. Diameter: About 2.25 cm. Internode length: About 1.75 cm. Aspect: Upright. Strength: Good. Color: 147A. Foliage description.--Appearance: Single; clasping. Length: About 22.5 cm. Width: About 9.2 cm. Shape: Oblong. Apex: Cuspidate. Base: Obtuse. Margin: Entire; undulating. Orientation: Initially upright to roughly horizontal. Texture: Smooth, glabrous; thick and leathery. Veins: Prominent on lower surface. Venation pattern: Pinnate. Color: Developing and fully expandedleaves, upper surface: Ground color, darker than 147A; central area and random spots, close to 191A. Developing and fully expanded leaves, lower surface: Lighter green than 147A. Venation, upper surface: Same as lamina. Venation, lower surface: Closeto 146B to 146C. Petiole: Aspect: Erect to outwardly bent. Length: About 11.5 cm. Diameter, distal: About 5 mm. Diameter, proximal: About 1.75 mm. Wing length: About 9.4 cm. Wing diameter: About 7 mm. Color, developing and fully expanded leaves,petiole and wing: Close to 146B. Inflorescence description: Inflorescence development has not been observed on plants of the new Aglaonema grown under shadehouse production conditions. Disease/pest resistance: Plants of the new Aglaonema have beenobserved to be resistant to pathogens common to Aglaonema such as Xanthomonas and Phytophthora. Plants of the new Aglaonema have not been observed to be resistant to pests and other pathogens common to Aglaonema. Weather tolerance: Plants of the newAglaonema have been observed to be tolerant to wind, rain and temperatures ranging from 2.degree. C. to 43.degree. C.

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