PPS07-160 A-Line


Denomination: 'PPS07-160 A-Line'
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: 2009-07-21
Application Number: 09-6693
Protective direction granted: 2009-07-21
Grant of Rights Date: 2011-02-22
Certificate Number: 4006
Exemption from compulsory licensing: Yes
Expiry date for exemption from compulsory licensing: 2013-02-22
Date rights surrendered: 2015-02-11

Variety Description

Varieties used for comparison: 'PPS01-140 A-Line', 'PPS02-144 A-Line' and '5020'

Summary: The cotyledon of 'PPS07-160 A-Line' is shorter and narrower than 'PPS02-144 A-Line' and '5020'. 'PPS07-160 A-Line' has a medium green leaf colour while it is light green in 'PPS02-144 A-Line'. The leaf of 'PPS07-160 A-Line' has very few lobes while 'PPS01-140 A-Line', 'PPS02-144 A-Line' have a medium number and '5020' has medium to many. 'PPS07-160 A-Line' has a shorter and narrower leaf than '5020'. 'PPS07-160 A-Line' flowers later than 'PPS02-144 A-Line' and '5020'. The flower petal of 'PPS07-160 A-Line' is longer than that of 'PPS01-140 A-Line' but shorter than that of '5020'. 'PPS07-160 A-Line' has a narrower flower petal than 'PPS02-144 A-Line' and '5020'. The plant height of 'PPS07-160 A-Line' at maturity is shorter than that of 'PPS01-140 A-Line'. 'PPS07-160 A-Line' has a semi erect silique attitude while it is horizontal in the reference varieties. The silique of 'PPS07-160 A-Line' is shorter than the reference varieties. 'PPS07-160 A-Line' has a longer beak than 'PPS01-140 A-Line' but shorter than 'PPS02-144 A-Line' and '5020'. The pedicel of 'PPS07-160 A-Line' is longer than that of 'PPS01-140 A-Line' but shorter than that of '5020'. 'PPS07-160 A-Line' matures later than 'PPS01-140 A-Line' and '5020'. The seed of 'PPS07-160 A-Line' has lower protein levels than in 'PPS02-144 A-Line'.


PLANT: male sterile inbred line, glufosinate ammonium tolerant, spring seasonal type, short to medium height at maturity

COTYLEDON: very narrow to narrow, short

LEAF: medium green, very few lobes, rounded margin, low density of shallow dentations, short, narrow to medium width

FLOWER PETALS: yellow, short to medium length, narrow to medium width

SILIQUE: semi-erect attitude, very short to short, medium width, medium length beak, short to medium length pedicel

SEED: black

AGRONOMIC CHARACTERISTICS: fair resistance to lodging

QUALITY CHARACTERISTICS: erucic acid is 0.7% of total fatty acids, oil content is 48.9% of whole dried seed, protein is 25.5% of dried oil free meal, low glucosinolates (13.9 µmol/g)

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

Origin & Breeding History: 'PPS07-160 A-line' is a male sterile inbred line used in F1 hybrid production, that contains the Ms8 gene construct in heterozygous state. 'PPS07-160 A-line' is a doubled haploid line that was produced in Canada in 2003. It was selected in 2005 and 2006 on the basis of male sterility stability, expression of tolerance to glufosinate ammonium herbicide and good combining ability with numerous restorer lines. Other selection criteria included height, vigour, maturity, blackleg resistance, oil content, fatty acid profile and glucosinolate content.

Tests & Trials: Trials were conducted during the summers of 2008 and 2009 in Saskatoon, Saskatchewan. Plots consisted of 3 rows with a row length of 6 meters and a row spacing of 50 cm. There were 3 replicates arranged in a RCB design.

Comparison tables for 'PPS07-160 A-Line' with reference varieties 'PPS01-140 A-Line', 'PPS02-144 A-Line' and '5020'

Means are based on a two year average of 40 measurements for cotyledon characteristics, 30 for plant height and 60 plant parts for leaf, petiole, flower petal, silique, beak and pedicel characteristics. Differences are significant at the 2% probability level based on LSD values.

Cotyledon width (mm)

  'PPS07-160 A-Line' 'PPS01-140 A-Line' 'PPS02-144 A-Line' '5020'
mean (LSD=3.8) 20.2 23.1 27.3 27.7
std. deviation 2.2 1.6 2.8 3.3

Cotyledon length (mm)

  'PPS07-160 A-Line' 'PPS01-140 A-Line' 'PPS02-144 A-Line' '5020'
mean (LSD=2.9) 11.5 12.4 15.7 15.8
std. deviation 1.4 0.9 1.4 1.5

Leaf length (mm)

  'PPS07-160 A-Line' 'PPS01-140 A-Line' 'PPS02-144 A-Line' '5020'
mean (LSD=47.18) 154 173 183 225
std. deviation 22 20 22 24

Leaf width (mm)

  'PPS07-160 A-Line' 'PPS01-140 A-Line' 'PPS02-144 A-Line' '5020'
mean (LSD=22) 82 83 88 110
std. deviation 13 12 12 17

Days to Flowering

  'PPS07-160 A-Line' 'PPS01-140 A-Line' 'PPS02-144 A-Line' '5020'
mean (LSD=2.4) 48.0 47.0 43.0 42.0

Flower petal length (mm)

  'PPS07-160 A-Line' 'PPS01-140 A-Line' 'PPS02-144 A-Line' '5020'
mean (LSD=1.2) 12.2 10.7 13.0 17.1
std. deviation 1.1 0.8 0.8 0.8

Flower petal width (mm)

  'PPS07-160 A-Line' 'PPS01-140 A-Line' 'PPS02-144 A-Line' '5020'
mean (LSD=0.91) 5.8 5.8 6.9 7.8
std. deviation 0.9 0.8 0.6 0.6

Plant height at maturity (cm)

  'PPS07-160 A-Line' 'PPS01-140 A-Line' 'PPS02-144 A-Line' '5020'
mean (LSD=12) 128 146 125 129
std. deviation 7.1 6.5 5.8 8.1

Silique length (mm)

  'PPS07-160 A-Line' 'PPS01-140 A-Line' 'PPS02-144 A-Line' '5020'
mean (LSD=2) 47.5 56.5 62.2 65.4
std. deviation 5.1 5.4 9.0 5.0

Beak length (mm)

  'PPS07-160 A-Line' 'PPS01-140 A-Line' 'PPS02-144 A-Line' '5020'
mean (LSD=0.6) 10.3 7.5 14.3 14.6
std. deviation 1.2 1.4 1.7 1.7

Pedicel length (mm)

  'PPS07-160 A-Line' 'PPS01-140 A-Line' 'PPS02-144 A-Line' '5020'
mean (LSD=1.6) 15.7 14.1 16.7 17.9
std. deviation 2.6 2.1 2.2 2.1

Days to maturity

  'PPS07-160 A-Line' 'PPS01-140 A-Line' 'PPS02-144 A-Line' '5020'
mean (LSD=5) 111 105 108 97.5

Protein content of seed (% of dried oil free meal)

  'PPS07-160 A-Line' 'PPS01-140 A-Line' 'PPS02-144 A-Line' '5020'
mean (LSD=2.6) 25.5 26.9 28.8 24.6

Click on image for larger view
PPS07-160 A-Line
Canola: 'PPS07-160 A-Line' (far left) with reference varieties 'PPS01-140 A-Line' (centre left), 'PPS02-144 A-Line' (centre right) and '5020' (far right)

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