Sweet Caroline Bewitched Purple
| Denomination: | 'Sweet Caroline Bewitched Purple' |
|---|---|
| Botanical Name: | Ipomoea batatas |
| Applicant/Holder: |
North Carolina State University Office of Technology Transfer 1021 Main Campus Drive Raleigh, North Carolina 27606 United States of America |
| Breeder: |
G. Craig Yencho, North Carolina State University, Raleigh, United States of America Kenneth Pecota, 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: | 2005-12-22 |
| Application Number: | 05-5201 |
| Grant of Rights Date: | 2007-09-07 |
| Certificate Number: | 2900 |
| Exemption from compulsory licensing: | Yes |
| Expiry date for exemption from compulsory licensing: | 2009-09-07 |
| Date rights surrendered: | 2012-09-06 |
Variety Description
Varieties used for comparison: 'Black Heart' (Ace of Spades) and 'Sweet Caroline Purple'
Summary: 'Sweet Caroline Bewitched Purple' has a more upright growth habit than 'Black Heart' and 'Sweet Caroline Purple'. The plant height of 'Sweet Caroline Bewitched Purple' is slightly taller than 'Black Heart' and 'Sweet Caroline Purple'. 'Sweet Caroline Bewitched Purple' is narrower in plant width than 'Black Heart'. The leaf of 'Sweet Caroline Bewitched Purple' is shorter than 'Black Heart' but longer than 'Sweet Caroline Purple'. 'Sweet Caroline Bewitched Purple' has a wider leaf than 'Sweet Caroline Purple'. The leaf shape of 'Sweet Caroline Bewitched Purple' is ovate while it is reniform to palmately lobed in 'Sweet Caroline Purple'. 'Sweet Caroline Bewitched Purple' has a truncate leaf base while it is cordate in 'Black Heart' and truncate to reniform in 'Sweet Caroline Purple'. The petiole of 'Sweet Caroline Bewitched Purple' is shorter than 'Black Heart' but longer than 'Sweet Caroline Purple'. 'Sweet Caroline Bewitched Purple' has a black to dark brown leaf colour while it is dark brown in 'Black Heart' and black in 'Sweet Caroline Purple'.
Description:
PLANT: vegetatively propagated perennial grown as an annual, upright-bushy to bushy-rounded growth habit, medium to dense degree of branching
STEM: purple, absent or weak glaucosity, absent or very sparse pubescence, medium thickness, smooth shape
LEAF: alternately arranged, simple type, ovate shape, acute to acuminate apex, truncate base, sinuate and dentate margin, absent to very sparse pubescence on upper and lower side, absent to very weak glaucosity on upper side, black to dark brown (RHS N187A/200A) upper side, brown purple (RHS 187A) lower side, no variegation, petiole present, very strong anthocyanin colouration of petiole
Origin & Breeding History: 'Sweet Caroline Bewitched Purple' originated from the conventional cross between Ipomoea batatas varieties NC547ORN as the female parent and 'Pink Frost' as the male parent, where NC547ORN resulted from a cross between NC102-1ORN as the female parent and NC125-1ORN as the male parent. The cross was conducted in the winter of 2001/2002 at North Carolina State University, Raleigh, North Carolina, USA. Seed from this cross were planted in the greenhouses in the Spring of 2002. A single plant was selected based on foliage colour, foliage traits, plant habit, plant branching, plant vigour and flowering ability and given the experimental designation NC1124-3ORN.
Tests & Trials: Trials were conducted during the summer of 2006 in Oxford Station, Ontario. 15 plants of each variety were individually grown in 10cm pots in a polyhouse. Plants were spaced 30cm apart. Observations and measurements were taken on 10 plants of each variety. Colour measurements were done using the 2001 RHS colour chart.
Comparison tables for 'Sweet Caroline Bewitched Purple' with reference varieties 'Black Heart' and 'Sweet Caroline Purple'
Plant height (cm)
| 'Sweet Caroline Bewitched Purple' | 'Black Heart' | 'Sweet Caroline Purple' | |
|---|---|---|---|
| mean | 20.1 | 15.4 | 15.2 |
| std. deviation | 1.10 | 2.40 | 0.97 |
Plant width (cm)
| 'Sweet Caroline Bewitched Purple' | 'Black Heart' | 'Sweet Caroline Purple' | |
|---|---|---|---|
| mean | 42.8 | 56.0 | 38.3 |
| std. deviation | 8.73 | 3.02 | 7.96 |
Leaf length (cm)
| 'Sweet Caroline Bewitched Purple' | 'Black Heart' | 'Sweet Caroline Purple' | |
|---|---|---|---|
| mean | 15.54 | 20.10 | 12.90 |
| std. deviation | 2.58 | 1.70 | 1.79 |
Leaf width (cm)
| 'Sweet Caroline Bewitched Purple' | 'Black Heart' | 'Sweet Caroline Purple' | |
|---|---|---|---|
| mean | 8.97 | 9.50 | 6.06 |
| std. deviation | 0.89 | 1.17 | 0.75 |
Petiole length (mm)
| 'Sweet Caroline Bewitched Purple' | 'Black Heart' | 'Sweet Caroline Purple' | |
|---|---|---|---|
| mean | 71.57 | 105.14 | 55.86 |
| std. deviation | 7.76 | 14.75 | 15.52 |
Leaf colour (RHS)
| 'Sweet Caroline Bewitched Purple' | 'Black Heart' | 'Sweet Caroline Purple' | |
|---|---|---|---|
| upper side | N187A/200A | N200A/200A | N187A/N186A/B |
| lower side | 187A | 187A | 187A |
Click on image for larger view
Sweet Potato: 'Sweet Caroline Bewitched Purple' (left) with reference variety 'Black Heart' (right)
Click on image for larger view
Sweet Potato: 'Sweet Caroline Bewitched Purple' (left) with reference variety 'Sweet Caroline Purple' (right)
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