Denomination: 'Paul'
Botanical Name: Pyrus ussuriensis
Applicant/Holder: Hamer, Paul
Saskatoon Farm
80181 338 Ave., East
Foothills, Alberta
T1S 4S3
Breeder: Paul Hamer, Foothills, Alberta
Application Date: 2010-02-18
Application Number: 10-6839
Protective direction granted: 2010-02-18
Grant of Rights Date: 2012-02-16
Certificate Number: 4271
Grant of Rights Termination Date: 2030-02-16

Variety Description

Varieties used for comparison: 'Ure' and 'Golden Spice'

Summary: The leaves of 'Paul' are longer and wider than those of both reference varieties. The curvature of the longitudinal axis of 'Paul' is strong whereas it is medium on 'Ure' and weak on 'Golden Spice'. The fruit of 'Paul' are large whereas those of 'Ure' and 'Golden Spice' are small. The depth of the stalk cavity of 'Paul' is medium whereas it is very shallow in 'Ure' and absent to very shallow in 'Golden Spice'.


TREE: strong vigour, very strong branching, semi-upright habit, begins flowering mid-season, late maturity for consumption

ONE YEAR OLD SHOOTS: straight growth, brown red on sunny side, medium number of lenticels
VEGETATIVE BUD: obtuse apex, adpressed position in relation to the shoot, medium sized bud support
YOUNG SHOOTS: medium intensity of anthocyanin colouration of growing tip, weak pubescence on upper third

LEAF: outwards attitude in relation to shoot, small length/width ratio, obtuse base and apex, short pointed tip, sharply serrate margin, deep incisions, strong curvature of longitudinal axis
STIPULES: absent

FLOWER: mainly on spurs, stigma located below stamens
SEPALS: adpressed in relation to corolla, brown in colour in early summer
PETALS: touching, large, ovate, truncate base, medium length claw

FRUIT: large length/diameter ratio, position of maximum diameter in middle, large size, symmetric in longitudinal cross section, convex profile of sides
SKIN: yellow green ground colour, small amount of orange red over colour, absent or very small area of russet located around eye basin, on cheeks and around stalk attachment
STALK: thick, medium curvature, oblique attitude in relation to axis of the fruit, medium depth of stalk cavity
EYE BASIN, AT HARVEST: erect sepals, shallow depth, narrow width, smooth relief around eye
FLESH: coarse texture, firm, juicy
SEED: elliptic

Origin & Breeding History: In 1995, seedlings of an unknown pear variety were discovered growing at Saskatoon Farm near Dewinton, Alberta. Several seedlings were evaluated for fruit size, shape and flavour. On the basis of these selection criteria, 'Paul' was selected in 1999 and was grafted onto wild Pyrus ussuriensis rootstock.

Tests & Trials: Tests and trials for 'Paul' were conducted during the 2008 to 2010 growing seasons at Saskatoon Farm, Dewinton, Alberta. There were 10 trees of the candidate variety and 3 trees of each reference variety. The trial was planted in 2005 with trees spaced 4 meters apart within the row and approximately 3 meters apart between the rows. Measured characteristics were based on 10 measurements.

Comparison tables for 'Paul' with reference varieties 'Ure' and 'Golden Spice'

One year old shoot internode length (cm)

  'Paul' 'Ure' 'Golden Spice'
mean 4.6 2.8 2.8
std. deviation 0.69 0.34 0.25

Leaf length (cm)

  'Paul' 'Ure' 'Golden Spice'
mean 8.1 6.4 4.95
std. deviation 0.99 0.69 0.72

Leaf width (cm)

  'Paul' 'Ure' 'Golden Spice'
mean 6.5 4.8 3.5
std. deviation 0.96 0.42 0.47

Fruit length (cm)

  'Paul' 'Ure' 'Golden Spice'
mean 7.0 4.6 4.55
std. deviation 0.23 0.56 0.43

Maximum diameter of fruit (cm)

  'Paul' 'Ure' 'Golden Spice'
mean 6.3 4.1 3.8
std. deviation 0.67 0.39 0.34

Click on image for larger view
Pear: 'Paul' (centre) with reference varieties 'Golden Spice' (left) and 'Ure' (right)

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