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Echo Russet

Potato

Denomination: 'Echo Russet'
Botanical Name: Solanum tuberosum
Applicant/Holder: Oregon State University
Office of Commercialization and Corporate Development
312 Kerr Administration Building
Corvallis, Oregon
97331-2140
United States of America
Breeder: Oregon State University, Corvallis, 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: 2019-02-13
Provisional Protection:: 2019-02-13
Application Number: 19-9723

Variety Description

Variety used for comparison: 'Goldrush'

Summary: The lightsprout of 'Echo Russet' is ovoid in shape whereas the lightsprout of 'Goldrush' is broad cylindrical. The lightsprout tip of 'Echo Russet' has a weak intensity of anthocyanin colouration and a medium density of pubescence whereas that of 'Goldrush' has a medium intensity of anthocyanin colouration and absent or very sparse to sparse pubescence. The lightsprout of 'Echo Russet' has a medium number of root tips whereas that of 'Goldrush' has few root tips. The stem of 'Echo Russet' has a low extent of anthocyanin colouration whereas the stem of 'Goldrush' has an absent to very low extent of anthocyanin colouration. The upper side of the midrib on the leaflet of 'Echo Russet' has a low extent of anthocyanin colouration whereas that of 'Goldrush' has an absent to very low extent of anthocyanin colouration. The upper side of the leaflet for 'Echo Russet' is dull whereas that of 'Goldrush' is medium to glossy. The inner side of the corolla for 'Echo Russet' has an absent to very weak intensity of anthocyanin colouration whereas that of 'Goldrush' has a weak to medium intensity of anthocyanin colouration. The tuber of 'Echo Russet' has light beige skin whereas the tuber of 'Goldrush has reddish brown skin.

Description:

LIGHTSPROUT: medium sized, ovoid, medium number of root tips, short lateral shoots
LIGHTSPROUT BASE: strong intensity of anthocyanin colouration, absent or low proportion of blue in anthocyanin colouration, medium density of pubescence
LIGHTSPROUT TIP: small in relation to base, closed habit, weak intensity of anthocyanin colouration, medium density of pubescence

PLANT: foliage structure is intermediate to leaf type where foliage is half open to closed and stems are partly to hardly or not visible, semi-upright growth habit, matures mid to late in the season

STEM: low extent of anthocyanin colouration along entire stem

LEAF: medium sized outline, open, weak presence of secondary leaflets, medium green upper side, low extent and weak to medium intensity of anthocyanin colouration on upper side of midrib, absent or very low frequency of coalescence of terminal and lateral leaflets
SECOND PAIR OF LATERAL LEAFLETS: medium to large, leaflet is narrower than long
LEAFLET: absent or very weak to weak degree of waviness of margin, shallow veins, dull on upper side, pubescence present on blade at apical rosette

PEDUNCLE: low extent of anthocyanin colouration
INFLORESCENCE: low frequency per plant, small
FLOWER BUD: low extent of anthocyanin colouration
COROLLA: medium sized
COROLLA (INNER SIDE): absent or very low extent and absent or very weak intensity of anthocyanin colouration, absent or low proportion of blue in anthocyanin colouration

TUBER: long, white flesh
TUBER EYE: shallow, yellow at base
TUBER SKIN: light beige, weak anthocyanin colouration of skin in reaction to light

Origin & Breeding History: 'Echo Russet' (experimental designation AO96141-3) originated from a cross between A89222-3, as the female parent, and COA90064-6, as the male parent, conducted in 1996 at the Oregon State University's potato breeding and variety development program. In 1999, the seed resulting from the cross was sown in the greenhouse. The resulting tubers were harvested and planted in the field in 2000 in Powell Butte, Oregon, USA. 'Echo Russet' was selected in 2000 based on negative mass selection for agronomic characteristics and disease resistance.

Tests & Trials: The comparative trial for 'Echo Russet' was conducted by Global Agri Services Inc. during the 2019 growing season in Drummond, New Brunswick. The trial consisted of a single, 21 metre long row per variety. Each row contained 70 plants spaced 0.3 metres apart with an inter-row spacing of 0.9 metres.

Click on image for larger view
Echo Russet
Potato: 'Echo Russet' (left) with reference variety 'Goldrush' (right)

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