Colorado Rose

Potato

Denomination: 'Colorado Rose'
Botanical Name: Solanum tuberosum
Applicant/Holder: Colorado Certified Potato Growers' Assn., Inc.
P.O. Box 151
Sanford, Colorado
81151
United States of America
Breeder: David Holm, Colorado State University, Center, United States of America
Agent in Canada: Global Agri Services Inc.
376 New Maryland Highway
New Maryland, New Brunswick
E3C 1E5
Canada
Tel: 506-462-9493
Application Date: 2008-10-16
Application Number: 08-6457
Grant of Rights Date: 2013-02-22
Certificate Number: 4474
Grant of Rights Termination Date: 2031-02-22

Variety Description

Variety used for comparison: 'Red LaSoda'

Summary: The lightsprout of 'Colorado Rose' is large while it is medium sized in 'Red LaSoda'. 'Colorado Rose' has a strong intensity of anthocyanin colouration on the base of the lightsprout while it is very strong in 'Red LaSoda'. The tip of the lightsprout of 'Colorado Rose' is small in relation to the base, has an intermediate habit and medium intensity of anthocyanin colouration while the tip of the lightsprout of 'Red LaSoda' is medium in size, has a closed habit and strong intensity of anthocyanin. 'Colorado Rose' has a weak presence of secondary leaflets while 'Red LaSoda' has a medium presence . The extent of anthocyanin colouration on the midrib of the upper side of the leaf in 'Colorado Rose' is high while it is medium for 'Red LaSoda'. 'Colorado Rose' has a large second pair of lateral leaflets while they are medium sized in 'Red LaSoda'. The waviness of the margin of the leaflet of 'Colorado Rose' is weak while it is absent or very weak in 'Red LaSoda'. 'Colorado Rose' has a shorter plant height than 'Red LaSoda'. The maturity of 'Colorado Rose' is late while it is early to medium for 'Red LaSoda'. The eyes on the tuber of 'Colorado Rose' are shallow while they are deep for 'Red LaSoda'.

Description:

PLANT: intermediate to leaf type foliage structure, upright to semi-upright growth habit, late maturity

STEM: medium to high extent of anthocyanin colouration along the entire length

LEAVES: medium to large outline, intermediate openness, weak presence of secondary leaflets, medium to dark green, high extent and medium to strong intensity of anthocyanin colouration on the midrib of the upper side, absent or very low frequency of coalescence of terminal and lateral leaflets
SECOND PAIR OF LATERAL LEAFLETS: large, narrower than long width in relation to length
LEAFLET: weak waviness of margin, medium depth veins, medium glossiness on upper side, no pubescence on blade at apical rosette

INFLORESCENCE: medium frequency per plant, small to medium size, medium extent of anthocyanin colouration on peduncle
FLOWER BUD: medium to high extent of anthocyanin colouration
COROLLA: large, high to very high extent of anthocyanin colouration on the inner side, anthocyanin strong in intensity with absent or low proportion of blue

TUBER: short oval to oval, white flesh
TUBER EYES: shallow depth
TUBER SKIN: red, red at base of eye

LIGHTSPROUT: large, ovoid, medium number of root tips, short lateral shoots
LIGHTSPROUT BASE: strong intensity of anthocyanin colouration, absent or low proportion of blue in the anthocyanin colouration, dense pubescence
LIGHTSPROUT TIP: small size in relation to base, intermediate habit, medium intensity of anthocyanin colouration, medium pubescence

Origin & Breeding History: The origin of 'Colorado Rose' is the result of the cross made in 1989 between NDTX9-1068-11R and DT6063-1R at the San Luis Valley Research Centre, Colorado State University, Centre, Colorado. Selection criteria included yield potential, exceptional attractive tuber type, and skin colour.

Tests & Trials: Tests and trials were conducted during the 2011 growing season in Drummond, New Brunswick. Plots consisted of 60 plants grown in a single row with a row length of 18.5 meters and a row spacing of 0.9 meters.


Comparison table for 'Colorado Rose' with reference variety 'Red LaSoda'

Plant height (cm)

  'Colorado Rose' 'Red LaSoda'
mean 37.4 48.6
std. deviation 1.8 1.6

Click on image for larger view
Colorado Rose
Potato: 'Colorado Rose' (left) with reference variety 'Red LaSoda' (right)