Plants – Rose – Climber
Plant Patent
1999-02-22
2001-07-31
Campell, Bruce R. (Department: 1661)
Plants
Rose
Climber
Plant Patent
active
PP012018
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to a new and distinct cultivar of Scaevola plant, botanically known as
Scaevola aemula
and referred to by the cultivar name Blue Shamrock.
The new cultivar is a product of a planned breeding program conducted by the Inventor in Emerald, Victoria, Australia, The objective of the breeding program was to create new compact Scaevola cultivars.
The new cultivar originated from a cross made by the Inventor in 1993 of a proprietary selection of
Scaevola aemula
identified as 93/203 as the female, or seed, parent and an unidentified selection of
Scaevola aemula
as the male, or pollen, parent. The new Scaevola was selected by the Inventor as a flowering plant within the progeny of this cross in a controlled environment in Emerald, Victoria, Australia in 1993.
Compared to plants of the female parent, the selection 93/203, plants of the new Scaevola have darker green leaves that are less serrated and have shorter internodes.
Compared to plants of the male parent, the unidentified selection of
Scaevola aemula
, plants of the new Scaevola have larger darker green leaves and longer stems.
Asexual propagation of the new cultivar by terminal cuttings taken in Emerald, Victoria, Australia, has shown that the unique features of this new Scaevola are stable and are reproduced true to type in successive propagations.
SUMMARY OF THE INVENTION
The new cultivar has not been observed under all possible environmental conditions. The phenotype may vary somewhat with variations in environment such as temperaure, daylength and light intensity, without, however, any variance in genotype.
The following characteristics have been repeatedly observed and are determined to be basic characteristics of ‘Blue Shamrock’ which distinguish ‘Blue Shamrock’ as a new and distinct cultivar:
1. Low-growing, compact and outwardly spreading growth habit.
2. Short internodes, dense and bushy plant form and freely branching plant habit.
3. Freely flowering, about 150 flowers and flower buds per plant.
4. Large blue-purple fan-shaped flowers.
Compared to plants of the
Scaevola aemula
cultivar Blue Wonder, disclosed in U.S. Plant Pat. No. 7,929, plants of the new Scaevola are more compact, fuller, denser, and have shorter internodes when grown side-by-side.
REFERENCES:
Huxley, A., Griffiths, M., and Levy, M., The New Royal Horticultural Society Dictionary of Gardening. vol. 4. p. 222, Jul. 10, 1992.
Campell Bruce R.
Kizilkaya Michelle
Whealy C. A.
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