NCORNSP-020BWGWE

Sweet Potato

Denomination: 'NCORNSP-020BWGWE'
Trade name: Sweet Caroline Bewitched Green with Envy
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
Meri K. Reeber, 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: 519-631-6241
Application Date: 2016-07-08
Application Number: 16-8968

Variety Description

Variety used for comparison: 'Bright Ideas Cordate Lime'

Summary: The plants of 'NCORNSP-020BWGWE' are taller than the plants of 'Bright Ideas Cordate Lime'. The plants of 'NCORNSP-020BWGWE' have a strong degree of branching whereas the plants of 'Bright Ideas Cordate Lime' have a weak to medium degree of branching. The stem of 'NCORNSP-020BWGWE' is thick whereas the stem of 'Bright Ideas Cordate Lime' is of medium thickness. The intensity of anthocyanin colouration of the stem node is medium for 'NCORNSP-020BWGWE' whereas the intensity is absent or weak for 'Bright Ideas Cordate Lime'. The leaf blade margin of 'NCORNSP-020BWGWE' is irregularly serrate with medium to deep sinuses between serrations whereas the leaf blade margin of 'Bright Ideas Cordate Lime' is entire. The intensity of anthocyanin colouration on the upper abaxial veins of the leaf blade is medium to strong for 'NCORNSP-020BWGWE' whereas there is no anthocyanin colouration of the abaxial veins of the leaf blade of 'Bright Ideas Cordate Lime'. The petiole of 'NCORNSP-020BWGWE' is longer than the petiole of 'Bright Ideas Cordate Lime'.

Description:

PLANT: semi-upright growth habit, strong degree of branching

STEM: light green (RHS 145B), thick, large diameter of internode, absent or weak intensity of anthocyanin colouration of tip, medium intensity of anthocyanin colouration of node, dense pubescence of tip

PETIOLE: medium to strong intensity of anthocyanin colouration
YOUNG LEAF BLADE: yellow green on upper side
LEAF BLADE: cordate to triangular shape, irregularly serrate margin with medium to deep sinus between serrations, medium degree of rugosity, dark green (darker than RHS 144A) upper side (excluding anthocyanin colouration), brown green (close to RHS 147C) lower side, weak intensity of anthocyanin colouration on upper side of veins at base of blade, medium to strong intensity and large extent of anthocyanin colouration on upper side of abaxial veins

INFLORESCENCE: absent

Origin & Breeding History: 'NCORNSP-020BWGWE' was bred and developed by the breeders, Dr. G. Craig Yencho, Meri K. Reeber, and Dr. Kenneth V. Pecota, all employees of North Carolina State University, in Raleigh, North Carolina, USA. It originated from a cross between the proprietary breeding line designated 'NC8148-006ORN', as the female parent, and the proprietary breeding line designated 'NC8124-001ORN', as the male parent. This cross was part of a winter greenhouse crossing block that occurred between September 2012 and March 2013 at the Horticultural Field Lab Greenhouses in Raleigh, North Carolina. The resultant seeds were sown and the seedlings were transplanted to 15 cm pots. Vegetative cuttings of the seedlings were taken for propagation in April 2013. The resultant plants were planted in the field in a two plant unreplicated plot in June 2013. 'NCORNSP-020BWGWE' was selected on September 3, 2013, at the Horticultural Crops Research Station, in Clinton, North Carolina, for its plant growth habit, plant vigour, leaf shape, leaf colour, and leaf margin dentation.

Tests & Trials: The comparative trial of 'NCORNSP-020BWGWE' was conducted in a polyhouse during the spring of 2017 at BioFlora Inc., in St. Thomas, Ontario. The trial included a total of 20 plants each of the candidate and reference variety. All plants were grown from rooted cuttings and transplanted into 15 cm pots on April 18, 2017. The observations and measurements were taken from 10 plants or 10 parts of plants of each variety on June 8, 2017. All colour determinations were made using the 2007 Royal Horticultural Society (RHS) Colour Chart.


Comparison tables for 'NCORNSP-020BWGWE' with reference variety 'Bright Ideas Cordate Lime'

Plant height (cm)

  'NCORNSP-020BWGWE' 'Bright Ideas Cordate Lime'
mean 18.3 14.0
std. deviation 1.36 1.23

Petiole length (cm)

  'NCORNSP-020BWGWE' 'Bright Ideas Cordate Lime'
mean 10.2 5.6
std. deviation 1.79 0.69

Click on image for larger view
NCORNSP-020BWGWE
Sweet Potato: 'NCORNSP-020BWGWE' (left) with reference variety 'Bright Ideas Cordate Lime' (right)

Click on image for larger view
NCORNSP-020BWGWE
Sweet Potato: 'NCORNSP-020BWGWE' (left) with reference variety 'Bright Ideas Cordate Lime' (right)

Click on image for larger view
NCORNSP-020BWGWE
Sweet Potato: 'NCORNSP-020BWGWE' (left) with reference variety 'Bright Ideas Cordate Lime' (right)

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