Patent Publication Number: US-10850-P

Title: Chrysanthemum plant named `Vyron`

Description:
BACKGROUND OF THE INVENTION 
     The present invention comprises a new and distinct cultivar of Chrysanthemum plant which is a natural occurring sport of a parent Chrysanthemum named Regoltime (not patented). The new cultivar was discovered as a whole plant mutation in 1986 in a greenhouse at &#39;s-Gravenzande in Holland. The invention has been asexually reproduced by cuttings at the same location. The new cultivar has been found to retain all of its distinctive characteristics through successive asexual propagations. 
     SUMMARY OF THE INVENTION 
     The present invention is a new and distinct variety of Chrysanthemum of a medium sized yellow bloom with a brownish center. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS 
     The present invention of a new and distinct variety of chrystanthemum is shown in the accompanying drawings, the color being as nearly true as possible with color photographs of this type. In this regard, the ray florets illustrated in FIG. 2 appear slightly darker and more orange than true. 
     FIG. 1 shows a stem of the cultivar in full bloom. 
     FIG. 2 shows the various stages of bloom of the new cultivar. 
     FIG. 3 shows foliage and petiole of the new cultivar. 
    
    
     DESCRIPTION OF THE INVENTION 
     This new variety of Chrysanthemum is of the botanical classification Dendranthema grandiflora. When grown in the vicinity of &#39;s-Gravenzande, Holland, it has a response time of approximately 9 weeks. This new variety produces medium sized yellow blooms with a brownish center having a 2 week performance (i.e., vase life of 14 days). This new variety of chrysanthemum has been found to retain its distinctive characteristics throughout successive propagations and may be planted under greenhouse conditions in Holland between weeks 2 and 32. 
     The following is a description of the plant and characteristics (color designations are from R.H.S. Colour Chart) that distinguish it from related known varieties and antecedents: 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. 
     
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CULTIVAR VYRON       PARENT CULTIVAR REGOLTIME
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Color
Center of
         Immature:   Immature:
Flower/  brown 200 B yellow-green 144A
Disc Floret
         merging     Mature:
         to yellow-orange
                     yellow-green 144C
         at the edge
         Mature:
         greyed-orange
         172A, deepening
         to the center
Colour of the
         Nearest     Nearest Yellow 9A
uppersurface of
         Yellow 9A
the majority of
the ray-florets
Colour of the
         Nearest     Between Yellow 6C and Yellow 7C
lowersurface of
         Yellow 9B
the majority of
the ray-florets
Tonality from
         A yellow daisy
                     A yellow daisy with a green center
Distance with a brown
                     showing no pollen
         center
Discoloration
         none        to Yellow 8A
Pollen   none        none
Petals
Texture  Upperside   Upperside smooth, underside smooth.
         smooth, underside
         smooth.
Number   55-65, three rows
                     45-50, two rows
Cross-section
         concave, one keel
                     convex, two keels
Arrangement
         Imbricated  Imbricated
Persistence
         Very good,  Very good, petals keep straight total
         petals keep vaselife.
         straight total
         vaselife.
Fragrance
         Typical     Typical chrysanthemum
         chrysanthemum
Disc     medium      medium (±1.5 cm)
Diameter (±1.7 cm)
Reproductive
Organs
Stamen   Yellow-green,
                     Yellow-green, thick, ±5 mm
         thick, ±5 mm in
                     in length.
         length.
Pollen   none        none
Styles   green, thick
                     green, thick
Sytle Length
         ±5 mm    ±5 mm
Stigmas  yellow-green
                     yellow-green
Sigma    ±2 mm    ±2 mm
Width
Ovaries  enclosed in enclosed in calyx
         calyx
Plant
Form     Spray mum meant
                     Spray mum meant for erect culture.
         for erect culture.
                     Herbaceous.
         Herbaceous.
Growth   short to medium
                     short
Height   ±100 cm  ±100 cm
Stem Color
         near green  yellow-green 146C
         137 A
Stem     strong to   strong
Strength very strong
Stem     present     absent
Brittleness
Stem     present     absent
Anthocyanin
Coloration
Internodes
         short, 2 cm very short to short, 11/2-2 cm
Flowering
         9 weeks     10 weeks
Response
Foliage
Color    upperside   upperside green 137 A, underside
         between 137 A
                     green 137 C
         and yellow-green
         147 A, underside
         near green 137 C
Size     length ±11 cm,
                     length ±12 cm, width ±8 cm
         width ±7 cm
Quantity 26-30       28-32
Shape    lobed, see  lobed
         photograph
Texture  upperside fleshy,
                     upperside fleshy, underside smooth,
         underside smooth,
                     slightly hirsute
         slightly hirsute
Ribs and Ribs well   Ribs well developed, veins not so
Veins    developed,  developed
         veins not so
         developed
Edge     crenated    crenated
Shape of round       round
Base of
Sinus Between
Lateral Lobes
Margin of
         converging  converging
Sinus Between
Lateral Lobes
Shape of Base
         truncate    cordate
Apex     mucronate   cuspidate
Growth
Difference in
         0           0
average length
Response time
Difference in
         0           0
days of average
response
Year of  1986        1980
Discovery
A botanical description of Vyron and its parent Regoltime:
Bud
Size     large cross large cross section ±1.5 cm
         section 1.5 cm
                     height ±1.2 cm
         height ±1.2 cm
Form     round and flat
                     round and flat
Outside Color
         near yellow-
                     near yellow 7C
         orange 15B
Bloom
Size     medium      small
Fully Expanded
         5-51/2 cm   41/2-5 cm
Borne    Upper portion
                     Upper portion single flower per
         single flower per
                     peduncle, lower portion plural flower
         peduncle, lower
                     per peduncle.
         portion plural
         flower per
         peduncle.
Number of
         average 8   average 8
Blooms per
Stem per Spray
Peduncle Near the top
                     Near the top ±6 cm
Lengths  ±6 cm    Near the middle ±12 cm
         Near the middle
                     Near the bottom ±16 cm
         ±12 cm
         Near the bottom
         ±16 cm
Peduncle medium      medium
Lateral Shoot,
Attachment
Peduncle medium      small
Lateral Shoot,
Angle
Form     single (daisy)
                     single (daisy)
Performance
         reasonable, reasonable, 14 days
         14 days     (18-20° C.)
         (18-20° C.)
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