DS41

Apple

Variety Description

Variety used for comparison: 'Honeycrisp'

Summary: The one-year-old shoot of 'DS41' has few to many lenticels whereas the one-year-old shoot of 'Honeycrisp' has many lenticels. 'DS41' has a shorter internode length on the one-year-old shoot than that of 'Honeycrisp'. The eye on the fruit of 'DS41' is large whereas the eye on the fruit of 'Honeycrisp' is small. The aperture of the locules in the fruit in transverse section are fully open for 'DS41' whereas the aperture of the locules in the fruit in traverse section are closed or slightly open for 'Honeycrisp'.

Description:

TREE: weak vigour, ramified, spreading growth habit, fruit bearing on spurs and long shoot
ONE-YEAR-OLD SHOOT: thin to medium thickness, sparse pubescence on distal half, few to medium number of lenticels, medium brown on sunny side

LEAF BLADE: outwards attitude in relation to shoot, medium length to width ratio, medium to dark green upper side, serrate type two incisions of margin on distal half, absent or sparse pubescence on lower side
PETIOLE: medium extent of anthocyanin colouration at base

FLOWER: begins flowering mid-season, dark pink on outer side at balloon stage, very large diameter with petals pressed into horizontal position, arrangement of petals is overlapping, stigmas positioned below anthers

YOUNG FRUIT: small extent of anthocyanin colouration
FRUIT: large, small to medium height to diameter ratio, conic shape, absent or weak ribbing, absent or weak crowning at calyx end, large eye, long sepal, locules fully open in traverse section, mid to late season harvest maturity and eating maturity
FRUIT SKIN: moderate bloom and greasiness, yellow green ground colour, very large area of over colour, medium red over colour distributed as solid flush with weakly defined stripes, narrow to medium width stripes, absent or small area of russet around stalk attachment on cheeks and around eye basin, medium to many lenticels, medium to large lenticels, medium to deep and medium to broad stalk cavity, deep and medium width eye basin
FRUIT STALK: medium to thick
FRUIT FLESH: firm, yellowish

Origin & Breeding History: 'DS41' was discovered within a cultivated orchard located in La Cross County, Wisconsin, USA. Seeds from an open pollinated 'Honeycrisp' apple tree were collected in 1990 and planted in 1991. After a suitable growing period, 'DS41' was selected from surviving seedlings during 2002. In August 2007, second generation trees were budded onto M26 rootstock. The principle characteristic which 'DS41' was selected for was date of harvest.

Tests & Trials: Tests and trials for 'DS41' were conducted in 2017 and 2018 at Summerland Varieties Corp test plots in Summerland, British Columbia. The trials consisted of 9 trees of 'DS41', grown on EMLA 106 rootstock, and 10 trees of 'Honeycrisp' grown on M9 rootstock. The trees were planted in 2014. Mean differences were significant at the 5% confidence probability level based on a paired Student's t-test.

Comparison table for 'DS41' with reference variety 'Honeycrisp'

Internode length on one-year-old shoot(cm)

Click on image for larger view

Apple: 'DS41' (right) with reference variety 'Honeycrisp' (left)