OSTZ0001

Osteospermum

Variety Description

Variety used for comparison: 'Tra Terra' (Tradewinds Terracotta '10)

Summary: 'OSTZ0001' has a larger number of ray florets per flower head than 'Tra Terra'. The number of colours on the upper side of the ray floret of 'OSTZ0001' is two whereas it is one for 'Tra Terra'. The colour group of the middle zone on the lower side of the ray floret is orange with brown stripes for 'OSTZ0001' while it is yellow with brown stripes for 'Tra Terra'.

Description:

PLANT: attitude of shoots is erect

LEAF: deep to very deep indentations of margin, no variegation, medium green on upper side

YOUNG FLOWER HEAD: upper side of ray floret is orange red (RHS 39B) with dark pink red (RHS N34C) streaks and orange brown (RHS 170B) at apex, base of ray floret on upper side is light yellow (RHS 9D)
FLOWER HEAD: no paracorolla, daisy type
RAY FLORET: obtuse apex, inward rolling of longitudinal margins is absent on all flowers, basal zone is blue pink (lighter than RHS 186C), two colours on upper side, main colour on upper side is orange pink (RHS 35C) with orange brown (RHS 31B) stripes and dark pink red (RHS N34C) diffuse stripes, secondary colour on upper side is light yellow (RHS 8D), secondary colour on upper side is distributed from middle to basal zones, colour group of middle zone of lower side is orange with brown stripes
DISC: brown

Origin & Breeding History: 'OSTZ0001' was bred and developed by the breeder, Theodore C.M. van Kleinwee, in Enkhuizen, Netherlands, as part of a controlled breeding program. It originated from an open pollinated cross between a proprietary line with yellow flower colour, designated '7-47-2' as the female parent, and an unknown male parent. The cross was conducted in June 2006. The resultant seed was collected and sown in a greenhouse in Enkhuizen in March 2007. In August 2007, a single plant was selected using flower colour, plant growth habit and production characteristics as the selection criteria. This plant was named 'OSTZ0001'.

Tests & Trials: Trials for 'OSTZ0001' were conducted in a polyhouse during the spring of 2012 at BioFlora Inc. in St. Thomas, Ontario. The trials included a total of 20 plants each of the candidate and reference varieties. All plants were grown from rooted cuttings and transplanted into 11.5 cm pots on April 23, 2012. Observations and measurements were taken from 10 plants of each variety on June 11, 2012. All colour determinations were made using the 2007 Royal Horticulture Society (RHS) Colour Charts.

Comparison tables for 'OSTZ0001' with reference variety 'Tra Terra'

Number of ray florets per flower head

Secondary colour of ray floret (RHS)

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Osteospermum: 'OSTZ0001' (left) with reference variety 'Tra Terra' (right)

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Osteospermum: 'OSTZ0001' (left) with reference variety 'Tra Terra' (right)

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Osteospermum: 'OSTZ0001' (left) with reference variety 'Tra Terra' (right)