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NCORNSP-032SCRHI

Sweet Potato

Denomination: 'NCORNSP-032SCRHI'
Trade name: Sweet Caroline Red Hawk
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
Christopher Heim, Morrisville, 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: 2024-04-24
Provisional Protection: 2024-04-24
Application Number: 24-11659

Variety Description

Varieties used for comparison: 'NCORNSP-030ILPL' (Sweet Caroline Illusion Penny Lace) and 'SolarPower Red'

Summary: The plants of ‘NCORNSP-032SCRHI' are shorter and narrower than those of the reference varieties. The plants of ‘NCORNSP-032SCRHI' have few branches whereas those of ‘SolarPower Red' have a medium number of branches. The plants of ‘NCORNSP-032SCRHI' have very many leaves whereas those of ‘NCORNSP-030ILPL' have a medium number of leaves and those of ‘SolarPower Red' have a medium number to many leaves. The stem of ‘NCORNSP-032SCRHI' is thin to a medium thickness whereas the stem of ‘NCORNSP-030ILPL' is thick. The tip of the stem of ‘NCORNSP-032SCRHI' has a medium density of pubescence whereas that of ‘NCORNSP-030ILPL' has dense pubescence. The leaf blade of ‘NCORNSP-032SCRHI' is shorter and narrower than that of the reference varieties. When fully opened and excluding the anthocyanin colouration, the upper side of the leaf blade of ‘NCORNSP-032SCRHI' is a slightly different dark brown than the leaf blade of ‘NCORNSP-030ILPL' and that of ‘SolarPower Red' is grey brown to dark brown.

Description:

PLANT: growth habit ranging from semi-upright to spreading, few branches, very many leaves

STEM: purple, thin to medium thickness, absent or weak intensity of anthocyanin colouration at tip, medium density of pubescence on tip
INTERNODE: strong intensity of anthocyanin colouration
NODE: strong intensity of anthocyanin colouration

PETIOLE: strong intensity of anthocyanin colouration
LEAF BLADE (YOUNG): light green (RHS N144A) on upper side
LEAF BLADE: cordate shape, deep lobing, entire margin
LEAF BLADE (UPPER SIDE): dark brown (redder than RHS 200A) when fully opened, strong intensity of anthocyanin colouration, very large extent of strong anthocyanin colouration along abaxial veins
LEAF BLADE (LOWER SIDE): light green (lighter than RHS N77A)

Origin & Breeding History: ‘NCORNSP-032SCRHI' originated from a conventional cross between the two proprietary breeding lines ‘NC9729-169ORN' as the female parent and an unknown male parent. The cross was conducted at North Carolina State University, Horticultural Field Laboratory Greenhouses, in Raleigh, North Carolina, USA between May 2019 and November 2019. The new variety ‘NCORNSP-032SCRHI' was selected from the progeny on September 25, 2020, at the Horticultural Crops Research Station in Clinton, North Carolina, USA based on growth habit, internode length, leaf colour and leaf shape.

Tests & Trials: The comparative trial of ‘NCORNSP-032SCRHI' was conducted in a polyhouse during the spring of 2025 at BioFlora Inc., in St. Thomas, Ontario. The trial included a total of 15 plants each of the candidate and reference variety. All plants were grown from rooted cuttings and transplanted into 15 cm pots on March 25, 2025. The observations and measurements were taken from 10 plants or 10 parts of plants of each variety on May 20, 2025. The mean differences were significant at the 5% probability level based on a paired Student's t-test. All colour determinations were made using the 2015 Royal Horticultural Society (RHS) Colour Chart.


Comparison tables for 'NCORNSP-032SCRHI' with reference varieties 'NCORNSP-030ILPL' and 'SolarPower Red'

Plant height (cm)

  'NCORNSP-032SCRHI' 'NCORNSP-030ILPL' 'SolarPower Red'
mean 20.7 25.6 21.6
std. deviation 0.87 0.93 0.93

Plant width (cm)

  'NCORNSP-032SCRHI' 'NCORNSP-030ILPL' 'SolarPower Red'
mean 42.8 51.2 44.86
std. deviation 1.47 1.98 1.23

Leaf blade length (cm)

  'NCORNSP-032SCRHI' 'NCORNSP-030ILPL' 'SolarPower Red'
mean 9.54 13.13 12.08
std. deviation 0.48 1.29 0.77

Leaf blade width (cm)

  'NCORNSP-032SCRHI' 'NCORNSP-030ILPL' 'SolarPower Red'
mean 8.94 15.14 12.21
std. deviation 0.62 2.09 1.52

Leaf blade colour (excluding anthocyanin colouration) (RHS)

  'NCORNSP-032SCRHI' 'NCORNSP-030ILPL' 'SolarPower Red'
upper side redder than 200A more purple than 200A N199A to 200C

Click on image for larger view
NCORNSP-032SCRHI
Sweet Potato: ‘NCORNSP-032SCRHI' (left) with reference varieties ‘SolarPower Red' (centre) and 'NCORNSP-030ILPL' (right)

Click on image for larger view
NCORNSP-032SCRHI
Sweet Potato: ‘NCORNSP-032SCRHI' (left) with reference varieties ‘SolarPower Red' (centre) and 'NCORNSP-030ILPL' (right)

Click on image for larger view
NCORNSP-032SCRHI
Sweet Potato: ‘NCORNSP-032SCRHI' (left) with reference varieties ‘SolarPower Red' (centre) and 'NCORNSP-030ILPL' (right)

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