LJ-1000

Apple

Variety Description

Variety used for comparison: 'Honeycrisp'

Summary: The area of over colour on the fruit of 'LJ-1000' is medium to large whereas the area of over colour of 'Honeycrisp' is small to medium sized. The over colour on the fruit of 'LJ-1000' is a solid flush with weakly defined stripes whereas the over colour on the fruit of 'Honeycrisp' is a weakly defined flush with strongly defined stripes. The fruit of 'LJ-1000' has many lenticels whereas the fruit of 'Honeycrisp' has a medium number of lenticels.

Description:

TREE: weak vigour, ramified, spreading growth habit, fruit bearing on spurs and long shoots, begins flowering mid season, mid season to late fruit harvest and eating maturity

ONE-YEAR-OLD SHOOT: medium thickness, greenish brown on side facing sun, sparse to medium density pubescence on distal half, medium number of lenticels

PETIOLE: small extent of anthocyanin colouration from base
LEAF BLADE: upwards attitude in relation to shoot, small to medium length to width ratio, medium to dark intensity of green on upper side, biserrate incisions of margin on distal half, medium density of pubescence on lower side

FLOWER: predominantly light pink at balloon stage, free arrangement of petals, stigmas positioned above anthers

YOUNG FRUIT: very small to small extent of anthocyanin over colour
FRUIT: medium to large, medium height to diameter ratio, globose shape, absent or weak degree of ribbing, absent or weak crowning at calyx end, medium to long sepal
FRUIT SKIN: absent or weak degree of bloom, absent or weak degree of greasiness, green ground colour, medium to large relative area of over colour, medium intensity of red over colour, over colour distributed as solid flush with weakly defined stripes, narrow to medium width stripes, absent or small area of russet around stalk attachment, absent or small area of russet on cheeks, absent or small area of russet around eye basin, many medium sized lenticels
FRUIT STALK: medium thickness
FRUIT STALK CAVITY: medium to deep, medium width
FRUIT EYE: medium sized
FRUIT EYE BASIN: medium to deep, medium width
FRUIT FLESH: medium firmness, cream coloured, closed or slightly open aperture of locules in transverse section

Origin & Breeding History: 'LJ-1000' originated as a spontaneous mutation of the variety 'Honeycrisp'. The new variety was discovered in a cultivated apple orchard owned by the breeder near Quincy, Washington, USA in 2003. In 2004 the mutant variety was grafted onto Sansa rootstock and in 2006 scion wood was removed from this tree and further grafted onto more Sansa rootstock within the same orchard. Further observations and comparisons were conducted on this second generation of trees and harvested fruit to ensure uniformity and stability with the first generation trees and the originally discovered tree.

Tests & Trials: The comparative trial for 'LJ-1000' was conducted from 2020 to 2021 at Summerland Varieties Corp. test plots, in Summerland, British Columbia. The trial consisted of 10 trees of 'LJ-1000' planted in 2016 on M26 rootstock and 10 trees of 'Honeycrisp' planted in 2012 on M9 rootstock. Trees were planted approximately 0.61 metres apart within a row and the rows were 3 metres apart. Observations and measurements were taken on 10 trees or 10 parts of trees for all varieties. Mean differences were significant at the 5% confidence probability level based on a paired Student's t-test.

Comparison tables for 'LJ-1000' with reference variety 'Honeycrisp'

Fruit height (cm)

Fruit diameter (cm)

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Apple: 'LJ-1000' (top) with reference variety 'Honeycrisp' (bottom)