USPP20475P3 - Chrysanthemum plant named ‘Zanmusunset’ - Google Patents

Abstract

A chrysanthemum plant named ‘Zanmusunset’ characterized by its medium sized blooms with orange ray florets and prolific branching; natural season flower date September 14; blooming for a period of 5 weeks.

Description

Botanical designation: Chrysanthemum×morifolium Ramat.

Cultivar denomination: ‘Zanmusunset’.

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct cultivar of chrysanthemum plant, botanically known as Chrysanthemum×morifolium Ramat., commercially known as a garden mum, and herein after referred to by the cultivar denomination ‘Zanmusunset’. ‘Zanmusunset’ is a product of a breeding and selection program for outdoor pot mums (garden mums) which had the objective of creating new chrysanthemum cultivars with a double type flower, a natural season flower date around September 14 (week 37); blooming for a period of 5 weeks. ‘Zanmusunset’ is a seedling resulting from a crossing of the seed parent id 996 and pollen parent id 4422. Plants of the new cultivar ‘Zanmusunset’ differ from its parent plants in (1) flower type and (2) plant vigor. (1) The flower type of the seed parent and of ‘Zanmusunset’ is double, while that of the male parent is semi-double. (2) The plants of the male parent are more strongly vigorous than those of ‘Zanmusunset’ and of its seed parent.

The new and distinct cultivar was discovered and selected as a flowering plant by Wilhelmus Bemardus Blom on a cultivated field in Rijsenhout, The Netherlands in 2005. The first act of asexual production of ‘Zanmusunset’ was accomplished when vegetative cuttings from the initial selection in 2005 were propagated further in a controlled environment in Rijsenhout, The Netherlands. The new cultivar has been found to retain its distinctive characteristics through successive propagations.

BRIEF DESCRIPTION OF THE DRAWINGS

The present invention of a new and distinct variety of chrysanthemum is shown in the accompanying drawings, the color being as nearly true as possible with color photographs of this type.

FIG. 1 shows a plant of the cultivar in full bloom.

FIG. 2 shows the various stages of bloom of the new cultivar.

FIG. 3 shows the various stages of foliage of the new cultivar.

DESCRIPTION OF THE INVENTION

The observations and measurements were gathered from plants grown out door in Rijsenhout, The Netherlands under natural day length and temperature and planted in week 25 in 2007. The natural blooming date of this crop was September 14 (week 37). The average height of the plants was 40–45 cm. No growth retardants were used. No tests were done on disease or insect resistance or susceptibility. No tests were done on cold or drought tolerance. This new variety produces medium sized blooms with orange ray florets blooming for a period of 5 weeks.

From the cultivars known to inventor the most similar existing cultivar in comparison to ‘Zanmusunset’ is ‘Thor’ (U.S. Plant Pat. No. 12,597). When ‘Thor’ and ‘Zanmusunset’ are being compared the following differences are noticed: The differences of ‘Thor’ and ‘Zanmusunset’ are (1) Flower size and (2) Plant size. (1) The flowers of ‘Zanmusunset’ are smaller in size than those of ‘Thor’. (2) The plants of ‘Zanmusunset’ are larger than those of ‘Thor’.

The following is a description of the plant and characteristics that distinguish ‘Zanmusunset’ as a new and distinct variety.

The color designations are taken from the plant itself. Accordingly, any discrepancies between the color designations and the colors depicted in the photographs are due to photographic tolerances. The color chart used in this description is: The Royal Horticultural Society Colour Chart, edition 2001.

TABLE 1
Botanical description of chrysanthemum plant named ‘Zanmusunset’

Bud
Size	Small; cross-section 1 cm, height 0.8 cm
Outside Color	Greyed-orange 168D
Phyllaries	2 rows
Phyllaries among disc-florets	Not present
Bloom
Type	Double
Height	1 cm
Size	4.5 cm
Phyllary number	25-28
Phyllary color (upper surface)	Green 138A
Phyllary length and width	7 mm and 3 mm
Peduncle length	12-14 cm
Peduncle color	Green 139C
Number of blooms per branch	Approx. 6 blooms per branch
Duration of flowering	5 weeks
Seeds	Produced in small quantities, ovate grey-
	brown 199A, 1 ½ mm in length.
Fragrance	Typical chrysanthemum, slightly
Color
Center of the flower	Immature stage: Greyed-red 181A
	Mature stage: Greyed-orange 168C
Color of upper surface of the	Greyed-orange 168 B-C
ray-florets
Color of the lower surface of	Greyed-orange 173C
the ray-florets
Tonality from Distance	A garden mum with orange flowers
Color of the ray-florets after	Greyed-orange 167D
aging of the plant
Ray florets
Texture	Upper and under surface smooth
Number	220-230
Cross-section	Flat
Longitudinal axis of majority	Straight
Length of corolla tube	0.5 cm
Ray-floret margin	Entire
Ray-floret length	1.8-2.5 cm
Ray-floret width	0.3-0.5 cm
Ratio length/width	High
Shape of tip	Dentate
Disc florets	Absent
Receptacle shape	Conical raised
Reproductive Organs
Stamen	Absent
Pistil	Present in ray-florets (one per ray-floret)
Style color	Yellow 13A
Style Length	3 mm
Stigma color	Yellow-green 144A
Stigma Width	1 mm
Ovaries	Enclosed in calyx
Plant
Form	Grown as a spray type potmum, outdoor
	mounded and round
Growth habit	Spherical shape
Growth rate	Vigorous
Height	40-45 cm
Width	55 cm
Stem Color	Greyed-brown 199C
Stem Strength	Strong
Stem Brittleness	Not brittle
Stem Anthocyanin Coloration	Absent
Internode length	1-1.5 cm
Length of lateral branch	From top to bottom 20-22 cm
Lateral branch color	Yellow-green 146D
Lateral branch, attachment	Medium strength
Branching (average number of	Prolific with 8 breaks after pinching
lateral branches)
Natural season blooming date	September 14 (week 37)
Foliage
Leaf color	Upper side: Green 139 A-B
	Lower side: Green 138A
Color midvein	Upper side: Yellow-green 147D
	Lower side: Yellow-green 148D
Size	Small.; length 4.5-7 cm, width 3-5 cm
Quantity (number per lateral	23-25
branch)
Shape	Ovate
Texture upper side	Glabrous
Texture under side	Pubescent
Venation arrangement	Palmate
Shape of the margin	Serrated
Shape of Base of Sinus Be-	Rounded
tween Lateral Lobes
Margin of Sinus Between	Converging
Lateral Lobes
Shape of Base	Truncate
Apex	Mucronulate
Petiole length	1-1.5 cm
Petiole color	Yellow-green 147D

TABLE 2
Differences with the comparison variety

	‘Zanmusunset’	‘Thor’

	Flower size	4.5	cm	6.57	cm
	Plant height	40-45	cm	30-35	cm

Claims (1)

1. A new and distinct variety of chrysanthemum plant as described and illustrated.

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