Denomination: 'PPS04-393'
Botanical Name: Brassica napus
Applicant/Holder: Bayer CropScience Inc.
Site 600, R.R. #6
P.O. Box 117
Saskatoon, Saskatchewan
S7K 3J9
Breeder: Hieronim Polewicz, Bayer CropScience Inc., Saskatoon, Saskatchewan
Application Date: 2005-06-17
Application Number: 05-4972
Protective direction granted: 2005-06-17
Grant of Rights Date: 2007-05-15
Certificate Number: 2736
Exemption from compulsory licensing: Yes
Expiry date for exemption from compulsory licensing: 2009-05-15
Date rights surrendered: 2008-05-27

Variety Description

Varieties used for comparison: 'PPS98-274', 'PPS02-364' and 'Ebony'

Summary: 'PPS04-393' has a shorter leaf and petiole than 'Ebony'. The days to flowering of 'PPS04-393' is later than 'PPS02-364' and 'Ebony'. 'PPS04-393' has a narrower flower petal than 'Ebony'. The silique of 'PPS04-393' is slightly narrower than 'Ebony'. 'PPS04-393' has a shorter beak than 'PPS02-364' and 'Ebony'. The pedicel 'PPS04-393' is shorter than 'PPS98-274' but longer than 'PPS02-364'. 'PPS04-393' has a shorter plant height at maturity than the reference varieties. The oil content as a % in whole dried seed of 'PPS04-393' is higher than 'PPS98-274'.


PLANT: inbred, glufosinate ammonium resistant, spring seasonal type, short to medium height at maturity

COTYLEDON: medium width, short to medium

LEAF: medium green, very few to few number of lobes, sharp type margin, medium to dense density of medium depth dentations, medium length and width, medium length petiole

FLOWERS: yellow, petals medium in length and width

SILIQUE: erect attitude, medium to long, narrow width, short to medium beak, medium length pedicel

SEED: black

AGRONOMIC CHARACTERISTICS: good resistance to lodging

QUALITY CHARACTERISTICS: erucic acid 0.01% of total fatty acids, oil content 47.4% of whole dried seed, protein 24.1% of dried oil free meal, very low glucosinolates less than 10 µmol/g

DISEASE RESISTANCE: resistant to Blackleg (Leptosphaeria maculans asexual stage: Phoma lingam) and White Rust (Albugo candida, races 7a & 2v)

Origin & Breeding History: 'PPS04-393' is a restorer line in the process of F1 hybrid production. It was derived as a doubled haploid line 99-98-049 containing the Rf3 gene in homozygous state from a cross and doubled haploid extraction made in Canada in 2000. The pedigree is as follows: 97CGH123 / 96CGH089 // 96CGH067 / 96CGH095. 'PPS04-393' was selected in 2002, on the basis of fertility restoration and expression of tolerance to glufosinate ammonium herbicide. Other selection criteria were height, vigour, maturity, blackleg resistance, oil content, fatty acid profile, glucosinolate content and combining ability.

Tests & Trials: Test and trials were conducted in Saskatoon, Saskatchewan during the summers of 2004 and 2005. Plots consisted of 3 rows that were spaced 50 cm apart with a row length of 6 meters. There were two replicates arranged in a RCB design.

Comparison tables for 'PPS04-393' with reference varieties 'PPS98-274', 'PPS02-364' and 'Ebony'

Means are based on a two year average of 60 plant parts for silique, 60 for leaf and petal characteristics, 60 for height and 40 cotyledon measurements. Differences are significant at the 2% probability level based on LSD values.

Leaf length (mm)

  'PPS04-393' 'PPS98-274' 'PPS02-364' 'Ebony'
mean 171 187 171 194
std. deviation 26.032 38.882 30.497 36.518

Petiole length (mm)

  'PPS04-393' 'PPS98-274' 'PPS02-364' 'Ebony'
mean 89.0 90.0 79.3 104.3
std. deviation 20.797 33.323 19.762 27.253

Days to flowering

  'PPS04-393' 'PPS98-274' 'PPS02-364' 'Ebony'
mean 49.0 48.5 45.5 47.5

Flower petal width (mm)

  'PPS04-393' 'PPS98-274' 'PPS02-364' 'Ebony'
mean 6.5 6.0 6.25 7.55
std. deviation 0.819 0.529 0.887 0.996

Silique width (mm)

  'PPS04-393' 'PPS98-274' 'PPS02-364' 'Ebony'
mean 4.2 4.4 4.3 5.0
std. deviation 0.561 0.535 0.441 0.450

Beak length (mm)

  'PPS04-393' 'PPS98-274' 'PPS02-364' 'Ebony'
mean 9.9 11.7 12.3 14.3
std. deviation 1.800 1.547 1.761 2.463

Plant height at maturity (cm)

  'PPS04-393' 'PPS98-274' 'PPS02-364' 'Ebony'
mean 103 131 112 123
std. deviation 7.200 7.545 6.711 8.658

Oil content (% of whole dried seed)

  'PPS04-393' 'PPS98-274' 'PPS02-364' 'Ebony'
mean 47.4 45.7 48.7 48.6

Click on image for larger view
Canola: 'Variety PPS04-393' (left) with reference varieties 'PPS98-274' (center left), 'PPS02-364' (center right) and 'Ebony' (right)

Click on image for larger view
Canola: Variety 'PPS04-393' (left) with reference varieties 'PPS02-364' (center left), 'Ebony' (center right) and 'PPS98-274' (right)

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