Miss Pearl
| Denomination: | 'Miss Pearl' |
|---|---|
| Botanical Name: | Buddleja |
| Applicant/Holder: |
North Carolina State University Office of Technology Transfer 1021 Main Campus Drive Raleigh, North Carolina 27606 United States of America |
| Breeder: |
Dennis J. Werner, North Carolina State University, Raleigh, United States of America |
| Agent in Canada: |
BioFlora Inc. 38723 Fingal Line R.R. #1 St. Thomas, Ontario N5P 3S5 Canada Tel: 519-317-7511 |
| Application Date: | 2015-07-27 |
| Provisional Protection:: | 2015-07-27 |
| Application Number: | 15-8694 |
| Grant of Rights Date: | 2021-01-13 |
| Certificate Number: | 6344 |
| Grant of Rights Termination Date: | 2041-01-13 |
Variety Description
Variety used for comparison: 'Ice Chip' (Lo & Behold Ice Chip)
Summary: The plants of 'Miss Pearl' are taller than the plants of 'Ice Chip'. The leaf blade of 'Miss Pearl' is wider than that of 'Ice Chip'. The inflorescence of 'Miss Pearl' is larger than the inflorescence of 'Ice Chip'. At full flowering, the corolla lobe of 'Miss Pearl' has a semi-erect attitude while the corolla lobe of 'Ice Chip' has an erect attitude. The margin of the corolla lobe of 'Miss Pearl' has few incisions while the corolla lobe margin of 'Ice Chip' has many incisions.
Description:
PLANT: upright to semi-upright growth habit, broader than tall
SHOOT: green
STEM: moderately angular in cross-section, medium density pubescence
LEAF BLADE: lanceolate, no variegation, medium green on upper side, mainly dentate and some crenate margin, absent or very sparse pubescence on upper side, pubescence present on lower side, weak to medium bulging between veins
TIME OF BEGINNING OF FLOWERING: mid-season
INFLORESCENCE: conical shape, dense florets
COROLLA LOBE: attitude is semi-erect at full flowering, arrangement is not touching, medium incisions of margin, inner side is white (RHS NN155D)
COROLLA EYE: yellow to orange
Origin & Breeding History: 'Miss Pearl' was bred and developed by the breeder Dennis James Werner, an employee of North Carolina State University, in Raleigh, North Carolina, USA. It originated from a controlled cross conducted in July 2009 between the female parent variety 'Ice Chip' and the male parent variety 'Miss Molly' at the Horticultural Field Laboratory Greenhouses in Raleigh, North Carolina, USA. On June 21, 2011, 'Miss Pearl' was selected at the Sandhills Research Station in Jackson Springs, North Carolina based on its compact plant growth habit, dense foliage, branching and flower colour. The first asexual propagation of 'Miss Pearl' was conducted by semi-hardwood stem cuttings in July 2015 in Raleigh, North Carolina, USA.
Tests & Trials: The comparative trial for 'Miss Pearl' was conducted in a polyhouse during the spring and summer of 2018 and 2019 at BioFlora Inc. in St. Thomas, Ontario. The trial included a total of 16 plants of the candidate variety and 8 plants of the reference variety. All plants were grown from 11.5 cm rooted liners and transplanted into 13.5 litre containers on August 24, 2018. Observations and measurements were taken from 10 plants, or 10 parts of plants, of each variety on July 18, 2019. All colour determinations were made using the 2007 Royal Horticultural Society (RHS) Colour Chart.
Comparison tables for 'Miss Pearl' with reference variety 'Ice Chip'
Plant height (cm)
| 'Miss Pearl' | 'Ice Chip' | |
|---|---|---|
| mean | 50.8 | 41.3 |
| std. deviation | 4.76 | 3.23 |
Leaf blade width (cm)
| 'Miss Pearl' | 'Ice Chip' | |
|---|---|---|
| mean | 3.4 | 2.7 |
| std. deviation | 0.13 | 0.40 |
Inflorescence length (cm)
| 'Miss Pearl' | 'Ice Chip' | |
|---|---|---|
| mean | 14.4 | 12.3 |
| std. deviation | 0.70 | 1.75 |
Inflorescence width (cm)
| 'Miss Pearl' | 'Ice Chip' | |
|---|---|---|
| mean | 3.9 | 3.4 |
| std. deviation | 0.59 | 0.22 |
Click on image for larger view
Butterfly Bush: 'Miss Pearl' (left) with reference variety 'Ice Chip' (right)
Click on image for larger view
Butterfly Bush: 'Miss Pearl' (left) with reference variety 'Ice Chip' (right)
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