NCORNSP-014BWPI

Sweet Potato

Variety Description

Variety used for comparison: 'Sweet Caroline Sweetheart Purple'

Summary: The plant of 'NCORNSP-014BWPI' is shorter and narrower than the plant of 'Sweet Caroline Sweetheart Purple'. The shoot of 'NCORNSP-014BWPI' is shorter than the shoot of 'Sweet Caroline Sweetheart Purple'. The leaf blade of 'NCORNSP-014BWPI' is wider than the leaf blade of 'Sweet Caroline Sweetheart Purple'. 'NCORNSP-014BWPI' has a reniform shaped leaf while 'Sweet Caroline Sweetheart Purple' has a cordate shaped leaf. The leaf margin of 'NCORNSP-014BWPI' is lobed with a few dentate teeth while the leaf margin of 'Sweet Caroline Sweetheart Purple' is entire. The leaf of 'NCORNSP-014BWPI' has medium to strong blistering while the leaf of 'Sweet Caroline Sweetheart Purple' has absent or very weak to weak blistering. 'NCORNSP-014BWPI' differs slightly from 'Sweet Caroline Sweetheart Purple' in the colour on the upper and lower side of the leaf.

Description:

PLANT: upright bushy growth habit, medium degree of branching
STEM: dark brown to dark purple red (RHS N186C-D), strong anthocyanin, very sparse pubescence, medium thickness, smooth shape

LEAF: alternate arrangement, simple, reniform, acuminate apex, cordate base, margin with shallow lobes and low number of medium to large dentate teeth, absent or very sparse pubescence on upper and lower side, no variegation, medium to strong leaf blistering, newly developed leaf brown green (RHS 146D) on upper side and brown green (RHS 147C) on lower side, upper side of fully developed leaf grey black (greyer than RHS N186A) with dark brown (RHS N186C) veins, lower side black to dark brown (RHS N186B-C) with dark violet (RHS N79B) veins, strong anthocyanin colouration on lower side
PETIOLE: strong anthocyanin colouration.

Origin & Breeding History: The variety 'NCORNSP-014BWPI' originated from an open pollinated cross made at North Carolina State University, Raleigh, North Carolina, USA. The cross was between the female parent, a proprietary breeding line designated NC5309-019ORN, and pollen from unknown male parents. The resultant seed was harvested between June and November of 2008 and sown in the greenhouse in February 2009. The first cycle of selection on the half-sib seedling population was conducted in seedling trays and the selections from these were transferred into 15 cm pots and maintained in the greenhouse. Two cuttings from each selection were taken in May 2009 and the young plants were planted in the field as two plant unreplicated plots in July 2009 at the Horticultural Crops Research Station in Clinton, North Carolina. The new variety was selected as a single plant on August 19, 2009, based on a combination of exceptional features including plant habit and vigour and foliage colour and shape.

Tests & Trials: The trial of 'NCORNSP-014BWPI' was conducted in a polyhouse during the spring of 2012 in St. Thomas, Ontario. The trial included a total of 15 plants of each variety. All plants were grown from rooted cuttings which were transplanted into 15 cm pots on May 3, 2012. Observations and measurements were taken from 10 plants or parts of plants of each variety on June 4, 2012. All colour determinations were made using the 2007 Royal Horticultural Society (RHS) Colour Chart.

Comparison tables for 'NCORNSP-014BWPI' with reference variety 'Sweet Caroline Sweetheart Purple'

Plant height (cm)

Plant width (cm)

Shoot length (cm)

Leaf blade width (cm)

Colour of leaf blade (RHS)

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Sweet Potato: 'NCORNSP-014BWPI' (left) with reference variety 'Sweet Caroline Sweetheart Purple' (right)

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Sweet Potato: 'NCORNSP-014BWPI' (left) with reference variety 'Sweet Caroline Sweetheart Purple' (right)

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Sweet Potato: 'NCORNSP-014BWPI' (left) with reference variety 'Sweet Caroline Sweetheart Purple' (right)