Chrysanthemum plant named ‘Redock White’
A Chrysanthemum plant named ‘Redock White’ characterized by its medium sized single type blooms with white ray-florets and yellow-green disc florets.
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‘Redock White’ is related to ‘Redock Yellow’ (copending U.S. Plant Pat. application), ‘Redock Dark’ (U.S. Plant Pat. pending), ‘Redock Salmon’ (U.S. Plant Pat. pending), and ‘Redock Orange’ (U.S. Plant Pat. pending). These varieties are all mutants of the original ‘Redock’ (unpatented).
BACKGROUND OF THE INVENTION‘Redock White’ is a product of a breeding and selection program which had the objective of finding color mutants of ‘Redock’. The new plant of the present invention comprises a new and distinct cultivar of chrysanthemum plant that is a natural occurring sport of a parent chrysanthemum named ‘Redock’ (unpatented). A comparison with Parent chrysanthemum ‘Redock’ is also made in this application. The new cultivar was discovered as a whole plant mutation in 2001 by Mark Roland Boeder in a controlled environment (greenhouse) in Rijsenhout Holland. The first act of asexual reproduction of ‘Redock White’ was accomplished when vegetative cuttings were taken from the initial selection in 2001 in Rijsenhout Holland.
SUMMARY OF THE INVENTIONThe present invention is a new and distinct variety of chrysanthemum bearing medium sized blooms with white ray-florets and yellow-green disc florets.
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.
This new variety of chrysanthemum is of the botanical classification Chrysanthemum morifolium L. The observations and measurements were gathered from plants grown in April/May in a greenhouse in Rijsenhout Holland in a photo-periodic controlled crop under conditions generally used in commercial practice. The greenhouse temperatures during this crop were at day-time between 18° C. and 25° C. and at night 20° C. After a long day period of 14 days the photo-periodic response time in this crop was 47 days. After the long day period to flowering growth retardants were applied 3 times in an average dose of 2.5 gram/liter water. No tests were done on disease or insect resistance or susceptibility. This new variety produces medium sized blooms with white ray-florets and yellow-green disc-florets blooming on the plant for 4 weeks. This new variety of chrysanthemum has been found to retain its distinctive characteristics throughout successive propagations however the phenotype may vary significantly with variations in environment such as light intensity and temperature. To show the phenotype as described ‘Redock White’ can be planted without assimilation lightning (high pressure sodium lamps) between week 1 and week 52 under greenhouse conditions in Holland. With assimilation light (minimum level 2500 lux) it can be planted year round under greenhouse conditions in Holland.
The difference between ‘Redock’ and its sport ‘Redock White’ is flower color. From the cultivars known to inventor the most similar existing cultivars in comparison to ‘Redock White’ are the original ‘Redock’ and its several sports and ‘White Reagan’ (U.S. Plant Pat. No. 8,784). When ‘Redock White’ is being compared with ‘Redock’, the following differences and similarities are noticed: The difference of ‘Redock White’, and ‘Redock’ is the (1) ray-floret color. The color of ‘Redock White’ is white, that of ‘Redock’ is pink. All other characteristics of members of the ‘Redock’ family are similar. While when ‘Redock White’ is being compared with ‘Reagan White’, the following differences and similarities are noticed. (1) ray-floret color. Both ‘Redock White’ and ‘White Reagan’ have white florets. (2) height of bloom. The bloom height of ‘Redock White’ is high, while that of ‘White Reagan’ is low. (3) cross-section of ray-florets. This is strongly concave for ‘Redock White’, while it is flat for ‘White Reagan’. (4) vigour. The plants of ‘Redock White’ are more vigorous than those of ‘White Reagan’. (5) plant height. The plants of ‘Redock White’ are higher than ‘White Reagan’.
The following is a description of the plant and characteristics that distinguish ‘Redock 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 1995.
Claims
1. A new and distinct variety of chrysanthemum plant as described and illustrated.
- Communication from Community Plant Variety Office Jul. 1, 2005.
- UPOV-ROM Plant Variety Database 2004/04 for chrysanthemum plant cultivar redock white.
Type: Grant
Filed: May 10, 2004
Date of Patent: Nov 15, 2005
Assignee: Chrysanthemum Breeders Assoc. NV
Inventor: Mark Roland Boeder (The Hague)
Primary Examiner: Anne Marie Grunberg
Assistant Examiner: Annette Para
Attorney: Parkhurst & Wendel, L.L.P.
Application Number: 10/841,482