Chrysanthemum plant named ‘Zanmutang’

Abstract

A chrysanthemum plant named ‘Zanmutang’ characterized by its small sized blooms with yellow ray florets and prolific branching; natural season flower date September 20 (week 38) blooming for a period of 4 weeks.

Description

Botanical designation: Chrysanthemum×morifolium Ramat.

Cultivar denomination: ‘Zanmutang’.

RELATED CULTIVARS

This new plant cultivar ‘Zanmutang’ is related to ‘Zanmudande’ (U.S. Plant patent application Ser. No. 13/200,327), a sibling obtained from the same cross with parent plants.

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 ‘Zanmutang’. ‘Zanmutang’ is a product of a breeding and selection program for outdoor pot mums (garden mums) which had the objective of creating new cultivars with a double type inflorescence, a natural season flower date around September 20 (week 38), blooming for a period of 4 weeks. ‘Zanmutang’ is a seedling resulting from a cross of the female parent id 21570 with the male parent id 23262. Both parents are unpatented plants. Plants of the new cultivar ‘Zanmutang’ differ from plants of the female parent in the following characteristics. (1) Plant vigor and (2) Natural season flower date. (1) Plants of the seedling are more vigorous than plants of the female parent. (2). Plants of the seedling flower earlier in season than plants of the female parent.

Plants of the new cultivar ‘Zanmutang’ differ from plants of the male parent in the following characteristics. (1) Plant vigor and (2) Natural season flower date. (1) Plants of the seedling are less vigorous than plants of the male parent. (2). Plants of the seedling flower earlier in season than plants of the male parent.

The new and distinct cultivar was discovered and selected as a flowering plant by Wilhelmus Bernardus Blom on a cultivated field in Rijsenhout, The Netherlands in 2005. The first act of asexual production of ‘Zanmutang’ 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 23 in 2005. The natural blooming date of this crop was September 20 (week 38). The average height of the plants was 35 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 small sized blooms with yellow ray florets blooming for a period of 4 weeks.

From the cultivars known to inventor the most similar existing cultivar in comparison to ‘Zanmutang’ is ‘Zanmusundance’ (U.S. Plant Pat. No. 21,163.). When ‘Zanmusundance’ and ‘Zanmutang’ are being compared the following difference are noticed: (1) Inflorescence shape. And (2) Number ray florets. (1) The decorative type inflorescences of ‘Zanmutang’ are more round shaped, while those of ‘Zanmusundance’ are more flat. (2). The number of ray florets is higher in ‘Zanmutang’ than in ‘Zanmusundance’.

The following is a description of the plant and characteristics that distinguish ‘Zanmutang’ 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

Detailed Botanical Description


Bud
Size                             Small; cross-section 5 mm, height
                                 4 mm
Shape                            Round
Texture                          Pubescent
Outside Color                    Greyed-green 191A
Phyllaries
Number                           20, arranged in 3 rows
Shape                            Elliptic
Apex                             Acute
Base                             Truncate
Margin                           Entire
Color                            Upper surface: Green 137C
                                 Lower surface: Green 137D
Length and width                 4 mm; 2 mm
Texture                          Pubescent
Inflorescences
Type                             Double
Height                           1.2-1.3 cm
Diameter                         3 cm
Peduncle length                  5.6-6 cm
Peduncle color                   Green 137C
Peduncle diameter                1.5 mm
Peduncle texture                 Pubescent
Number per branch                Approx. 5 inflorescences
Duration of flowering            4 weeks
Seeds                            Produced in small quantities, ovate,
                                 Greyed-brown 199A, length 1.5 mm,
                                 diameter 0.5 mm
Fragrance                        Faint chrysanthemum odor
Color
Center of inflorescence          Immature stage: Yellow 13B
                                 Mature stage: Yellow 7A
Color of upper surface of the ray- Yellow 13C
florets
Color of the lower surface of the Yellow 11C
ray-florets
Tonality from Distance           A garden mum with yellow blooms
Color of the ray-florets after aging Yellow 13c
of the plant
Ray florets
Texture                          Upper and lower surface smooth
Number                           230-240
Shape                            Elliptic
Apex                             Dentate
Base                             Attentuate
Cross-section                    Flat
Longitudinal axis of majority    Straight
Length of corolla tube           4 mm
Ray-floret margin                Entire
Ray-floret length                1.2-2 cm
Ray-floret width                 3-4 mm
Ratio length/width               High
Disc florets
Disc diameter in mature          2-4 mm
inflorescences
Distribution of disc florets     Scarce
Shape                            Tubular
Color                            Yellow-green 145C at base to Green
                                 Yellow 1D at apex
Length                           3.8 mm
Diameter                         2.5 mm
Receptacle
Color                            Yellow-green 145D
Shape                            Conical raised
Height                           4 mm
Diameter                         3 mm
Reproductive Organs
Androecium                       Present on only disc florets
Stamen length                    3 mm
Stamen color                     Yellow-green 144A
Anther color                     Yellow 3A
Pollen                           Present
Pollen color                     Yellow 13A
Gynoecium                        Present on both ray and disc florets
Style color                      Yellow-green 154C
Style Length                     3 mm
Stigma color                     Yellow 7A
Stigma Width                     1 mm
Ovary                            Enclosed in calyx
Plant
Form                             Grown as a spray type pot mum,
                                 outdoor raised and mounded
Growth habit                     Spherical shape
Growth rate                      Medium
Height                           35 cm
Width                            50-55 cm
Stem Color                       Greyed-brown 199A
Stem Strength                    Strong
Stem Brittleness                 Brittle
Stem Anthocyanin Coloration      Not observed
Internode length                 2-2.5 cm
Length of lateral branch         From top to bottom 18-20 cm
Lateral branch color             Green 137 C
Lateral branch, attachment       Brittle
Lateral branch diameter          2 mm
Branching (average number of     Prolific with 7 breaks after pinching
lateral branches)
Natural season blooming date     September 20 (week 38)
Foliage
Leaf color                       Upper side: Green 139A to 139B
                                 Lower side: Green 137D
Color midvein                    Upper side: Yellow-green 147D
                                 Lower side: Yellow-green 148D
Size                             Small; length 1.5-3 cm, width 1-
                                 2.5 cm
Quantity (number per lateral     17-19
branch)
Shape                            Elliptic
Texture upper side               Sparsely pubescent
Texture under side               Pubescent
Venation arrangement             Palmate
Shape of the margin              Smooth to serrated
Shape of Base of Sinus Between   Rounded
Lateral Lobes
Margin of Sinus Between Lateral  Diverging
Lobes
Shape of Base                    Attenuate
Apex                             Mucronulate
Petiole length                   3-4 mm
Petiole diameter                 1 mm
Petiole color                    Yellow-green 147D

TABLE 2
Differences with the comparison varieties
		‘Zanmutang’	‘Zanmusundance’
	Inflorescence height	1.2-1.5 cm	0.5 cm
	Number ray florets	230-240	Approx. 140

Claims

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