Abstract:
A  chrysanthemum  plant named ‘Zanmudeep’ characterized by its large sized blooms with dark purple ray florets and prolific branching, and response time of 8 weeks.

Description:
Botanical designation:  Chrysanthemum×morifolium  Ramat. 
     Cultivar denomination: ‘Zanmudeep’. 
     BACKGROUND OF THE INVENTION 
     The present invention relates to a new and distinct cultivar of  chrysanthemum  plant, botanically known as  Chrysanthemum×morifolium  Ramat., and hereinafter referred to by the cultivar denomination ‘Zanmudeep’. ‘Zanmudeep’ is a product of a breeding and selection program for pot mums which had the objective of creating new cultivars with a double type inflorescence, a 8 weeks response time and a medium plant height. ‘Zanmudeep’ is a seedling resulting from a cross of the female parent id 45927 with the male parent id 44279. Plants of the new cultivar ‘Zanmudeep’ differ from plants of the female parent in inflorescence color. The female parent has pink inflorescences, while those of ‘Zanmudeep’ are dark purple. Plants of the new cultivar ‘Zanmudeep’ differ from plants of the male parent in the following characteristics. (1) Plant vigor. And (2) Inflorescence size. (1). Plants of the male parent are less vigorous than those of ‘Zanmudeep’. (2) Inflorescences of the male parent are smaller than those of ‘Zanmudeep’. 
     The new and distinct cultivar was discovered and selected as a flowering plant within the progeny of the stated cross by Wilhelmus Bernardus Blom in a controlled environment (greenhouse) in Rijsenhout, The Netherlands in April 2004. The first act of asexual production of ‘Zanmudeep’ was accomplished when vegetative cuttings were used from the initial selection in June 2004 and propagated further in a controlled environment in Rijsenhout, The Netherlands. The new cultivar has been found to retain its distinctive characteristics through successive propagations, although the phenotype may somewhat vary with variations in environment such as light intensity and temperature. 
    
    
     
       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 in May 2010 from plants grown in a greenhouse in Rijsenhout, The Netherlands, in a photo-periodic controlled crop under conditions generally used in commercial practice. Three cuttings were planted in a pot with a diameter of 12 cm. The greenhouse temperatures for this crop were at day-time 18.degree.C. to 25.degree. C., and at night about 20.degree. C. The photo-periodic response time in this crop was 8 weeks after an average of eight long days. After this long day period growth retardants (Alar) were applied six times in an average dose of 1. 5 gram/liter water until flowering. The plants were observed (directly) during the flowering of this crop. No tests were done on disease or insect resistance or susceptibility. No tests were done on cold or drought tolerance. To show the phenotype as described ‘Zanmudeep’ can be planted without assimilation lighting (high pressure sodium lamps) between week 50 and week 40 of the next year under greenhouse conditions in the Netherlands. With assimilation lighting (minimum level 2500 lux) it can be planted all year round under greenhouse conditions in the Netherlands. 
     This new variety produces potmums with large sized blooms with dark purple ray florets. From the cultivars known to inventor the most similar existing cultivar in comparison to ‘Zanmudeep’ is ‘Midnight Time’ (U.S. Plant Pat. No. 17,056). When ‘Midnight Time’ and ‘Zanmudeep’ are being compared the following difference is noticed: The difference of ‘Midnight Time’ and ‘Zanmudeep’ are the following characteristics. (1) Color of the ray florets. And (2) Response Time. (1) Both plant varieties have dark blooms, but the purple ray florets of ‘Midnight Time’ have a red hue, while those of ‘Zanmudeep’ are more dark purple. (2) The response Time of ‘Midnight Time’ is lower than that of ‘Zanmudeep’. 
     The following is a description of the plant and characteristics that distinguish ‘Zanmudeep’ 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 xmorifolium  Ramat. 
               
               
                 ‘Zanmudeep’ 
               
               
                   
               
             
             
               
                   
               
             
          
           
               
                 Bud 
                   
               
               
                 Size 
                 Medium; cross-section 6 mm, 
               
               
                   
                 height 4 mm 
               
               
                 Shape 
                 Round 
               
               
                 Texture 
                 Smooth 
               
               
                 Outside Color 
                 Greyed-green 191A 
               
               
                 Phyllaries 
                   
               
               
                 Number 
                 16-18, arranged in 3 rows 
               
               
                 Shape 
                 Elliptic 
               
               
                 Apex 
                 Acute 
               
               
                 Base 
                 Truncate 
               
               
                 Margin 
                 Entire 
               
               
                 Color 
                 Upper surface: Greyed-green 191A 
               
               
                   
                 Lower Surface: Greyed-green 191B 
               
               
                 Length and width 
                 5 mm; 2 mm 
               
               
                 Texture 
                 Pubescent 
               
               
                 Inflorescence 
                   
               
               
                 Type 
                 Double 
               
               
                 Height 
                 2 cm 
               
               
                 Diameter 
                 6.5 cm 
               
               
                 Peduncle length 
                 3 cm 
               
               
                 Peduncle color 
                 Green N138B to N138C 
               
               
                 Peduncle diameter 
                 2 mm 
               
               
                 Peduncle texture 
                 Pubescent 
               
               
                 Number per branch 
                 Approx. 4-5 inflorescences 
               
               
                 Shelf life 
                 4 weeks 
               
               
                 Seeds 
                 Produced in small quantities, ovate, 
               
               
                   
                 Greyed-brown 199A, length 1.5 mm, 
               
               
                   
                 diameter 0.8 mm 
               
               
                 Fragrance 
                 Faint  chrysanthemum  odor 
               
               
                 Color 
                   
               
               
                 Center of inflorescence 
                 Immature stage: Red-purple 71A 
               
               
                   
                 Mature stage: Red-purple 71A 
               
               
                 Color of upper surface of the 
                 Red-purple 71A to 71B 
               
               
                 ray-florets 
                   
               
               
                 Color of the lower surface 
                 Red-purple 70B 
               
               
                 of the ray-florets 
                   
               
               
                 Tonality from Distance 
                 A pot mum with dark purple flowers 
               
               
                 Color of the upper surface 
                 Purple N77B 
               
               
                 of ray-florets after aging 
                   
               
               
                 of the plant 
                   
               
               
                 Ray florets 
                   
               
               
                 Texture 
                 Upper and lower side smooth 
               
               
                 Number 
                 170-180 
               
               
                 Shape 
                 Elliptic 
               
               
                 Apex 
                 Dentate 
               
               
                 Base 
                 Attenuate 
               
               
                 Cross-section 
                 Concave 
               
               
                 Longitudinal axis of 
                 Straight 
               
               
                 majority 
                   
               
               
                 Length of corolla tube 
                 3-5 mm 
               
               
                 Ray-floret margin 
                 Entire 
               
               
                 Ray-floret length 
                 2-3 cm 
               
               
                 Ray-floret width 
                 0.4-1 cm 
               
               
                 Ratio length/width 
                 Medium 
               
               
                 Disc florets 
                 Absent 
               
               
                 Receptacle 
                   
               
               
                 Color 
                 Yellow-green 145D 
               
               
                 Shape 
                 Domed raised 
               
               
                 Height 
                 3 mm 
               
               
                 Diameter 
                 1.2 cm 
               
               
                 Reproductive Organs 
                   
               
               
                 Androecium 
                 Absent 
               
               
                 Pollen 
                 Not produced 
               
               
                 Gynoecium 
                 Present on ray florets 
               
               
                 Style color 
                 Yellow-green 154C 
               
               
                 Style Length 
                 3 mm 
               
               
                 Stigma color 
                 Yellow 7A 
               
               
                 Stigma Width 
                 1 mm 
               
               
                 Ovary 
                 Enclosed in calyx 
               
               
                 Plant 
                   
               
               
                 Form 
                 Upright and free branching 
               
               
                 Growth rate 
                 Medium 
               
               
                 Height 
                 18 cm 
               
               
                 Width 
                 24 cm 
               
               
                 Stem Color 
                 Greyed-brown 199A 
               
               
                 Stem Strength 
                 Strong 
               
               
                 Stem Brittleness 
                 Not brittle 
               
               
                 Stem Anthocyanin Coloration 
                 Not observed 
               
               
                 Internode length 
                 1 cm 
               
               
                 Length of lateral branch 
                 From top to bottom 14 cm 
               
               
                 Lateral branch color 
                 Green 137 C 
               
               
                 Lateral branch diameter 
                 3 mm 
               
               
                 Lateral branch, attachment 
                 Strong 
               
               
                 Branching (average number 
                 Prolific with 3 breaks after pinching 
               
               
                 of lateral branches) 
                   
               
               
                 Response time 
                 8 weeks 
               
               
                 Foliage 
                   
               
               
                 Leaf color 
                 Upper surface: Green 137A 
               
               
                   
                 Lower surface: Green N138B 
               
               
                 Color midvein 
                 Upper surface: Yellow-green 147D 
               
               
                   
                 Lower surface: Yellow-green 148D 
               
               
                 Size 
                 Medium; length 7-8.5 cm,  
               
               
                   
                 width 4-5 cm 
               
               
                 Quantity (number per lateral 
                 12 
               
               
                 branch) 
                   
               
               
                 Shape 
                 Broadly elliptic 
               
               
                 Texture upper side 
                 Sparsely pubescent 
               
               
                 Texture under side 
                 Pubescent 
               
               
                 Venation arrangement 
                 Palmate 
               
               
                 Shape of the 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 length 
                 1-2 cm 
               
               
                 Petiole diameter 
                 2 mm 
               
               
                 Petiole color 
                 Yellow-green 147D 
               
               
                   
               
             
          
         
       
     
     
       
         
               
             
               
               
               
               
             
           
               
                 TABLE 2 
               
             
             
               
                   
               
               
                 Differences with the comparison variety when 
               
               
                 grown side-to-side 
               
             
          
           
               
                   
                   
                 ‘Zanmudeep’ 
                 ‘Midnight Time’ 
               
               
                   
                   
               
               
                   
                 Color ray florets 
                 Red-purple 71A to 71B 
                 Red-purple 61B 
               
               
                   
                 Response time 
                 8 weeks 
                 7 weeks