Patent Grant
PP28606
Botanical designation: Chrysanthemum×morifolium Ramat.
Cultivar denomination: “Zanmuskyfa White”.
The new plant is a flower color mutant of ‘Zanmuskyfa Purple’.
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.
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.
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.
| Number | Date | Country | |
|---|---|---|---|
| 20170188499 P1 | Jun 2017 | US |
