CV95002-1

Potato

Denomination: 'CV95002-1'
Botanical Name: Solanum tuberosum
Applicant/Holder: Colorado State University Research Foundation
P.O. Box 483
Fort Collins, Colorado
80522
United States of America
Breeder: Dermot Lynch, Agriculture & Agri-Food Canada, Lethbridge, Alberta
David Holm, Colorado State University, Center, United States of America
Agent in Canada: Agriculture & Agri-Food Canada
Office of Intellectual Property and Commercialization
6000 C&E Trail
Lacombe, Alberta
T4L 1W1
Canada
Tel: (403) 782-8126
Application Date: 2004-07-19
Application Number: 04-4304
Protective direction granted: 2004-07-19
Date Withdrawn: 2010-07-16

Variety Description

Varieties used for comparison: 'Russet Burbank' and 'Shepody'

Summary: 'CV95002-1' has a more upright growth habit than 'Russet Burbank' and 'Shepody'. The plant of 'CV95002-1' is shorter and matures earlier than both reference varieties. The degree of swelling of the nodes of 'CV95002-1' is greater than the reference varieties. 'CV95002-1' has a darker green leaf colour than the reference varieties. 'CV95002-1' has smaller lateral leaflets than the reference varieties. The lateral leaflet of 'CV95002-1' has a medium ovate shape with a cuspidate tip and an obtuse base while it is elliptical in shape with an acuminate tip and obtuse base for 'Russet Burbank' and for 'Shepody' it is medium ovate with cuspidate tip and truncate base. The tuber of 'CV95002-1' is light beige with a smooth to netted texture while it is reddish brown with a russetted texture in 'Russet Burbank'. 'CV95002-1' has a larger light sprout than the reference varieties. The light sprout of 'CV95002-1' is spherical while it is ovoid in the reference varieties. The base of the light sprout of 'CV95002-1' has stronger anthocyanin colouration and weaker pubescence than the reference varieties. 'CV95002-1' light sprout tip has weak anthocyanin colouration and sparse pubescence while in 'Russet Burbank' it has lacks anthocyanin colouration and has dense pubescence and in 'Shepody' it lacks anthocyanin colouration and has medium pubescence.

Description:

PLANT: semi-upright growth habit, leaf type foliage structure, early maturity

STEM: weak anthocyanin colouration, medium thickness of main stem, medium swelling at nodes

LEAVES: dark green, intermediate silhouette, no anthocyanin colouration in rachis and very weak anthocyanin colouration in the petiole, medium presence of secondary leaflets
TERMINAL LEAFLET: medium ovate, cuspidate tip, obtuse base
LATERAL LEAFLET: medium size, medium ovate, cuspidate tip, obtuse base

INFLORESCENCE: medium flowering profusion, medium size
COROLLA: red-violet, medium anthocyanin colouration on inner surface, medium size, prominent star, no anthocyanin in peduncle

TUBER: oblong, white flesh with no secondary colour
TUBER EYES: shallow to intermediate, evenly distributed, eyebrows not prominent
TUBER SKIN: light beige, white at base of eye, no anthocyanin colouration in reaction to light, smooth to netted texture

LIGHT SPROUT: large size, spherical shape, medium number of root tips, medium length lateral shoots
BASE: medium to strong anthocyanin colouration, no blue in anthocyanin colouration, sparse pubescence
TIP: smaller than base in size, intermediate habit, weak anthocyanin colouration, sparse pubescence

QUALITY: total glycoalkaloid content 3.9 mg/100 grams of fresh tuber, high specific gravity

Origin & Breeding History: 'CV95002-1' is the result of the cross A81386-1 x AC84437-2 that was made in 1996 at the San Luis Valley Research Centre, Colorado State University. A81386-1 = A74341-4 x Ranger Russet and AC84437-2 = ATD75-2 x A7961-1. It was assigned to the AAFC-Lethbridge, Vauxhall Research Substation where the first 4 years (1997-2000) of selection were carried out. Subsequent evaluation occurred in the Western Canadian Regional Potato Trials in 2001-2003, multi-harvest and long term storage trials in 2002-2003 at the Vauxhall Research Station. Selection criteria included tuber shape, tuber size, vine maturity, yield, incidence of tuber defects, fry colour and dry matter content (specific gravity).

Tests & Trials: Tests and trials occurred during the summer of 2007 in Vauxhall, Alberta. Plots consisted of a row 7.6 metres long with plants spaced 30 cm apart within the row. Rows were spaced 91 cm apart. There were 3 replicates arranged in an Randomized Complete Block design.


Comparison table for 'CV95002-1' with reference varieties 'Russet Burbank' and 'Shepody'

Plant height (cm)

  'CV95002-1' 'Russet Burbank' 'Shepody'
mean 56.4 82.8 72.2
std. deviation 7.4 5.1 8.1

Click on image for larger view
CV95002-1
Potato: 'CV95002-1' (left) with reference varieties 'Russet Burbank' (centre) and 'Shepody' (right)