Osteospermum plant named ‘Sirius’

Details Osteospermum plant named ‘Sirius’ Osteospermum plant named ‘Sirius’

1999-04-14

2001-02-20

Campell, Bruce R. (Department: 1638)

Plants

Rose

Climber

Plant Patent

active

PP011785

ABSTRACT:

BACKGROUND OF THE INVENTION
The present invention relates to a new and distinct cultivar of Osteospermum plant, botanically known as
Osteospermum ecklonis
and referred to by the cultivar name Sirius.
The new cultivar is a product of a planned breeding program conducted by the Inventor in Gensingen, Germany. The objective of the breeding program was to create new Osteospermum cultivars with early flowering, interesting inflorescence colors and improved summer performance.
The new cultivar originated from a cross made by the Inventor of the
Osteospermum ecklonis
cultivar Sunny Lady, disclosed in U.S. Plant Pat. No. 10,353, as the female, or seed, parent and an unnamed proprietary selection of
Osteospermum ecklonis
as the male, or pollen, parent. The new Osteospermum was selected by the Inventor as a flowering plant within the progeny of this cross in a controlled environment in Gensingen, Germany, in the summer of 1994.
Plants of the new cultivar are different from plants of the female parent, the cultivar Sunny Lady, in the following characteristics:
1. Plants of the new Osteospermum are more vigorous than plants of the cultivar Sunny Lady.
2. Plants of the new Osteospermum have more durable foliage than plants of the cultivar Sunny Lady.
3. Plants of the new Osteospermum have larger inflorescences than plants of the cultivar Sunny Lady.
4. Ray floret color of the new Osteospermum is much more intense than ray floret color of the cultivar Sunny Lady.
5. Plants of the new Osteospermum have longer peduncles than plants of the cultivar Sunny Lady.
Plants of the new cultivar are different from plants of the male parent, the unnamed proprietary selection of
Osteospermum ecklonis,
in the following characteristics:
1. Plants of the new Osteospermum are more compact than plants of the unnamed proprietary selection of
Osteospermum ecklonis.
2. Plants of the new Osteospermum have larger inflorescences than plants of the unnamed proprietary selection of
Osteospermum ecklonis.
3. Plants of the new Osteospermum have shorter peduncles than plants of the unnamed proprietary selection of
Osteospermum ecklonis.
Asexual propagation of the new cultivar by terminal cuttings and by tissue culture at Gensingen, Germany, has shown that the unique features of this new Osteospermum are stable and reproduced true to type in successive generations.
SUMMARY OF THE INVENTION
The following traits have been repeatedly observed and are determined to be the unique characteristics of ‘Sirius’. These characteristics in combination distinguish ‘Sirius’ as a new and distinct cultivar:
1. Mostly upright and bushy plant habit.
2. Freely branching and vigorous.
3. Early and continuous flowering.
4. Large inflorescences with intense dark purple ray florets.
5. Good summer performance, flowering continues through summer.
Plants of the new Osteospermum can be compared to plants of the
Osteospermum ecklonis
cultivar Cape Daisy Lusaka, disclosed in U.S. Plant Pat. No. 10,337. However, in side-by-side comparisons conducted in Gensingen, Germany, plants of the new cultivar differ from plants of the cultivar Cape Daisy Lusaka, in the following characteristics:
1. Plants of the new Osteospermum are more compact than plants of the cultivar Cape Daisy Lusaka.
2. Plants of the new Osteospermum have smaller leaves than plants of the cultivar Cape Daisy Lusaka.
3. Ray floret color of the new Osteospermum is much more intense than ray floret color of the cultivar Cape Daisy Lusaka.
The cultivar Sirius has not been observed under all possible environmental conditions. The phenotype may vary somewhat with variations in environment such as temperature, daylength and light intensity, without, however, any variance in genotype.


REFERENCES:
UPOV CD-ROM, PBR 952508, Osteospermum designated Sirius, 1996.

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