USPP28606P3

USPP28606P3 - Chrysanthemum plant named ‘Zanmuskyfa White’

Info

Publication number: USPP28606P3
Application number: US14/757,489
Authority: US
Inventors: Henricus Cornelius Maria Jacobs
Original assignee: Chrysanthemum Breeders Association NV
Current assignee: Van Zanten Breeding BV
Priority date: 2015-12-23
Filing date: 2015-12-23
Publication date: 2017-11-07
Also published as: US20170188499P1

Abstract

A chrysanthemum plant named ‘Zanmuskyfa White’ characterized by its small sized blooms with white ray floret and a cream center, and prolific branching; natural season flower date October 19 (week 43); blooming for a period of 5 weeks.

Description

Botanical designation: Chrysanthemum×morifolium Ramat.

Cultivar denomination: “Zanmuskyfa White”.

RELATED CULTIVARS

The new plant is a flower color mutant of ‘Zanmuskyfa Purple’.

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 hereinafter referred to by the cultivar denomination ‘Zanmuskyfa White’. ‘Zanmuskyfa White’ is a product of a breeding and selection program which had the objective of finding flower color mutants from existing parent plants. The new plant comprises a whole plant mutant of the parent chrysanthemum named ‘Zanmuskyfa Purple’ (unpatented). Plants from the new cultivar ‘Zanmuskyfa White’ differ from plants of the female parent in the color of the ray-florets. The ray-florets of the parent are purple, while those of the new plant are white.

In order to obtain color mutants, unrooted cuttings of the parent plant were irradiated in April 2013 at Ziekenhuis, Rotterdam, the Netherlands, with gamma radiation at a dose of 15 Gy. These treated cuttings were then planted in a controlled environment (greenhouse) in Rijsenhout, the Netherlands. In this population of planted cuttings an individual plant was found by Henricus Cornelis Maria Jacobs in May 2013 which had white inflorescences. This flower color mutant was subsequently selected for further tests in the same controlled environment in Rijsenhout, the Netherlands. The first act of asexual reproduction of ‘Zanmuskyfa White’ was accomplished when after planting of the selected plant as a motherplant in July 2013, vegetative cuttings from this motherplant were taken and propagated further in Rijsenhout, the Netherlands. In summer, about 6-8 days are needed to initiate roots in cuttings of the new cultivar, after another 5 days rooted plants are formed. 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 (of about 22 weeks) 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 blooms 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 in the period of 21 to 25 weeks of age grown outdoor in Rijsenhout, the Netherlands, under natural day length and temperature and planted in week 23 in 2015. The natural blooming date of this crop was October 19 (week 43). The average height of the plants was 25 cm. No growth retardants were used. No tests were done on disease or insects resistance or susceptibility. No tests were done on cold or drought resistance. This new variety produces small sized blooms with white ray florets and a cream center blooming for a period of four weeks.

From the cultivars known to the inventor the most similar existing cultivar in comparison to ‘Zanmuskyfa White’ is its parent ‘Zanmuskyfa Purple’ (unpatented). When ‘Zanmuskyfa Purple’ and ‘Zanmuskyfa White’ are being compared the following difference is noticed: ‘Zanmuskyfa Purple’ has purple blooms, while ‘Zanmuskyfa White’ has white blooms.

The following is a description of the plant and characteristics that distinguish “Zanmuskyfa White” 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 × morifolium
Ramat. ‘Zanmuskyfa White’

Bud
Size:	Small; cross-section 4 mm, height 2 mm
Shape:	Round
Texture:	Pubescent
Outside color:	Greyed-green 191A
Phyllaries
Number:	18-21., arranged in 3 rows
Shape:	Elliptic
Apex:	Acute
Base:	Truncate
Margin:	Entire
Color:	Upper side: Greyed-green 191A
	Lower side: Green 143A
Length and width:	3-4 mm; 1.5 mm
Texture:	Pubescent
Inflorescences
Type:	Double
Height:	0.8 cm
Diameter:	3 cm
Peduncle length:	5-5.5 cm
Peduncle color:	Green 138B
Peduncle diameter:	1.5 nun
Peduncle texture:	Pubescent
Peduncle strength:	Weak
Number per branch;	About 5-6 inflorescences
Duration of flowering:	5 weeks
Seed set:	Has not been determined to date
Fragrance:	Faint chrysanthemum odor
Color inflorescences
Center of inflorescence:	White 155A
Color of upper side of	Outer rows: White N155D;
ray florets:	Inner rows: White 155A
Color of lower side of	Outer rows: White N155D;
ray florets:	Inner rows: While 155A
Tonality from distance:	A garden mum with white blooms and
	a cream center
Color of ray florets after	White 155A
aging of the plant:
Ray florets
Number of types:	One
Type:	Ligulate
Texture:	Upper and lower side smooth
Number:	140-150
Shape:	Narrowly elliptic to Elliptic
Apex:	Pointed
Base:	Acute
Cross-section:	Flat
Longitudinal axis:	Straight
Length of corolla tube:	2 mm
Diameter corolla tube:	1 mm
Ray floret margin:	Entire
Ray floret length:	0.6-1.2 cm
Ray-floret width:	2-5 mm
Disc florets	Absent
Receptacle
Color:	Yellow-green 145D
Shape:	Domed raised
Height	2 mm
Diameter:	2 mm
Reproductive Organs
Androecium:	Absent
Pollen:	Absent
Gynoecium:	Present on ray florets
Style color:	Yellow-green 154C
Style length:	4 mm
Stigma color:	Yellow 7A
Stigma width:	1 mm
Ovary:	Enclosed in calyx
Ovary color:	Yellow-green 149D
Plant
Type:	Bushy
Growth habit:	Spherical shape
Growth rate:	Medium
Height:	20-25 cm
Width:	45 cm
Stem color:	Greyed-brown 199A
Stem strength:	Weak
Stem brittleness:	Brittle
Stem anthocyanin coloration:	absent
Internode length:	0.8-2.5 cm
Length of lateral branch:	From top to bottom 14-15 cm
Lateral branch color:	Green 138C
Lateral branch, attachment:	Weak
Lateral branch diameter:	2 .mm
Lateral branch texture:	Rough with ribs
Branching (average	Dense- with 10 to 12 breaks after
number of lateral branches):	pinching
Natural season blooming	October 19 (week 43) in Rijsenhout,
date:	the Netherlands.
Root habits:	Fine, freely branching
Root color:	White 155D; 6-8 days, formation
Rooting time:	rooted plants: 12-14 days
Foliage
Leaf glossines:	Upper side: weak; Lower side: absent
Leaf color:	Upper side: Yellow-green 147A;
	Lower side: Green 138A
Color midvein:	Upper side: Yellow-green 147D;
	Lower side: Yellow-green 148D
Size:	Small; length 3-4.5 cm, width 1.8-2.5 cm
Quantity (number per	14-15
lateral branches):
Shape:	Elliptic
Texture upper side:	Sparsely pubescent
Texture under side:	Pubescent
Venation arrangement:	Pinnate
Shape of margin:	Serrated
Shape of base of sinus	Rounded
between lateral lobes:
Margin of sinus between	Diverging
lateral lobes:
Shape of base:	Acute to truncate
Apex:	Mucronulate
Petiole altitude:	Strongly upwards
Petiole length:	0.5-0.8 cm
Petiole diameter:	15 mm
Petiole color:	Yellow-green 147D
Stipule:	very small, about 0.5 mm

TABLE 2

Differences with the comparison variety,
when grown under identical conditions

	“Zanmuskyfa White”	‘Zanmuskyfa Purple’

Color ray-florets	white	purple

Claims

I claim:

1. A new and distinct chrysanthemum plant named ‘Zanmuskyfa White’ as described and illustrated.