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AAC Alta Strong
|Denomination:||'AAC Alta Strong'|
|Previously Proposed Denomination:||'Alta Strong'|
|Botanical Name:||Solanum tuberosum|
Agriculture & Agri-Food Canada, Fredericton
Fredericton Research and Development Centre
850 Lincoln Road, P.O. Box 20280
Fredericton, New Brunswick
Benoit Bizimungu, Agriculture & Agri-Food Canada, Fredericton, New Brunswick
|Agent in Canada:||
Agriculture & Agri-Food Canada
Office of Intellectual Property and Commercialization
6000 C&E Trail
Tel: (403) 782-8126
|Protective direction granted:||2012-01-03|
|Grant of Rights Date:||2013-12-12|
|Grant of Rights Termination Date:||2031-12-12|
Varieties used for comparison: 'Shepody' and 'Russet Burbank'
Summary: The intensity of anthocyanin colouration at the base of the light sprout is very strong for 'AAC Alta Strong' whereas it is medium for 'Shepody' and 'Russet Burbank'. The proportion of blue in the anthocyanin colouration at the base of the light sprout is high for 'AAC Alta Strong' while it is absent for both reference varieties. 'AAC Alta Strong' has medium dense pubescence at the tip of the light sprout whereas those of the reference varieties have dense pubescence. The plant growth habit for 'AAC Alta Strong' is upright whereas it is semi-upright for the reference varieties. 'AAC Alta Strong' has a smaller leaf outline than 'Shepody' and 'Russet Burbank'. The leaflets of 'AAC Alta Strong' have deeper veins and a duller upper side than those of the reference varieties. 'AAC Alta Strong' has a larger corolla with a stronger intensity of anthocyanin colouration on the inner side than both reference varieties.
LIGHT SPROUT: medium size, conical, medium to many root tips, short lateral shoots
LIGHT SPROUT BASE: very strong intensity of anthocyanin colouration, high proportion of blue in anthocyanin colouration, medium dense pubescence
LIGHT SPROUT TIP: small in relation to base, closed habit, weak intensity of anthocyanin colouration, medium dense pubescence
PLANT: foliage structure is intermediate type where foliage is half open and stems are partly visible, upright growth habit, mid-season maturity
STEM: extent of anthocyanin colouration is very low
LEAF: small outline, opened to intermediate openness, presence of secondary leaflets is medium, medium green on upper side, anthocyanin colouration of midrib of upper side is weak, extent of anthocyanin colouration of midrib of upper side is low
SECOND PAIR OF LATERAL LEAFLETS: medium size, width in relation to length is narrower than long
LEAFLETS: frequency of coalescence of terminal and lateral leaflets is low, medium waviness of margin, deep veins on upper side, dull upper side
INFLORESCENCE: high frequency per plant, large, extent of anthocyanin colouration on peduncle is low
FLOWER BUD: extent of anthocyanin colouration is medium
COROLLA: large, medium to strong intensity of anthocyanin colouration on inner side, absent or low proportion of blue in anthocyanin colouration on inner side, extent of anthocyanin colouration on inner side is medium to high
TUBER: long-oval, light beige skin, shallow eyes, base of eyes is white, cream coloured flesh
Origin & Breeding History: 'AAC Alta Strong' (experimental designation V1270-1) originated from a cross made in 1999 at the Lethbridge Research Centre of Agriculture and Agri-Food Canada in Lethbridge, Alberta. The female parent is variety 'Glacier Fryer' from Agriculture and Agri-Food Canada's Lethbridge Research Centre and the male parent is variety 'Century Russet' from the United States Department of Agriculture's Agricultural Research Services in Aberdeen, Idaho, United States. In 2000, true potato seed was planted in a greenhouse in Lethbridge and the resulting seedling tubers were planted in 2001 at the Vauxhall Research Substation for selection. A clone designated V1270-1 was selected in 2001, and progressed through the 4-hill, 10-hill and 50-hill generation stages of selection and evaluation at the Vauxhall Research Substation in 2002, 2003 and 2004, rspectively. Selection criteria in the field in Vauxhall and in the laboratory in Lethbridge included vine maturity, shape and size of tuber, specific gravity, culinary quality, fry colour at harvest and out of long-term storage at 5 and 10°C, incidence of tuber defects, and reaction to diseases including common scab, late blight, fusarium dry rot, and verticillium wilt.
Tests & Trials: The trial for 'AAC Alta Strong' was conducted in 2012 at the Potato Research Centre of Agriculture and Agri-Food Canada in Fredericton, New Brunswick in 2012. There were 2 replicates per variety. Each replicate was 7.5 metres long with 0.9 metre spacing between rows. The plants were spaced 0.25 metres apart within the row. In total, there were 60 plants per variety.
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