Yocupertino

Chrysanthemum

Variety Description

Variety used for comparison: 'Yoauburn' (Auburn)

Summary: 'Yocupertino' has a smaller flower head diameter and larger disc diameter than 'Yoauburn'. The upper side of the ray floret of 'Yocupertino' is yellow with brown red over-colour while that of 'Yoauburn' is lighter yellow with red to red orange over-colour. The lower side of the ray floret is yellow for 'Yocupertino' while it is light yellow with orange pink under-colour for 'Yoauburn'. After anther dehiscence, the disc of 'Yocupertino' is orange while that of 'Yoauburn' is yellow orange.

Description:

PLANT: year round cultivation for pot production, spray flowering type, 8 week response group
STEM: green, no anthocyanin colouration

LEAF: medium green, 1.8:1 length/width ratio, obtuse base, diverging to parallel margins of sinus between lateral lobes

INFLORESCENCE: corymbiform
FLOWER HEAD: semi-double daisy type, chromatic self colour type, light to medium yellow to bronze colour group (heat affected colour intensity), moderate to dense ray florets
RAY FLORET: ligulate, longitudinal axis of majority is straight to slightly incurved, very weak to weak curvature, flat to weakly convex in cross-section, tip ranging from rounded to dentate to mamillate, yellow with brown red over-colour on upper side, flushed colour pattern on upper side, yellow on lower side
DISC: green before anther dehiscence, medium yellow at anther dehiscence
DISC FLORET: enlarged tubular type

Origin & Breeding History: 'Yocupertino' is a product of a planned breeding program conducted by the breeder, Mrs. Wendy R. Bergman, an employee of Yoder Brothers, Inc. in Barberton, Ohio, USA. It originated from a cross between proprietary Chrysanthemum seedling selection designated 'YB-4685' as the female parent and another proprietary Chrysanthemum seedling selection designated 'YB-4908' as the male parent. This cross was conducted by the breeder in May 1998, in Salinas, California, USA. 'Yocupertino' was discovered and selected in March 1999, as a single flowering plant among the progeny of the stated cross growing in a controlled environment in Fort Myers, Florida, USA. The selection of this plant was based on its uniform plant growth habit, desirable inflorescence form and floret colours, fast response time and excellent post-production longevity. Asexual reproduction of 'Yocupertino' by vegetative tip cuttings was first conducted in Fort Myers, Florida, USA in June 1999.

Tests & Trials: Trials for 'Yocupertino' were conducted in the fall of 2007 at Yoder Canada Ltd. in Leamington, Ontario. They were performed under greenhouse conditions similar to those used in commercial Chrysanthemum production. 40 unrooted cuttings per variety were directly stuck into 15 cm pots with 4 cuttings per pot and 10 pots per variety. The pots were spaced 30 cm apart. The plants were pinched once prior to short day treatment. All plants had the central bud removed. Observations and measurements were taken from 10 plants of each variety on October 29, 2007. All colour determinations were made using the 2001 Royal Horticulture Society (RHS) Colour Chart.

Comparison tables for 'Yocupertino' with reference variety 'Yoauburn'

Flower head diameter (cm)

Colour of upper side of ray floret (RHS)

Colour of ray floret (RHS)

Disc diameter (cm)

Colour of disc (RHS)

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Chrysanthemum: 'Yocupertino' (left) with reference variety 'Yoauburn' (right)

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Chrysanthemum: 'Yocupertino' (left) with reference variety 'Yoauburn' (right)