PPS07-162 A-line

Canola

Denomination: 'PPS07-162 A-line'
Botanical Name: Brassica napus
Applicant/Holder: Bayer CropScience Inc.
Site 600, R.R. #6
P.O. Box 117
Saskatoon, Saskatchewan
S7K 3J9
Canada
Breeder: Hieronim Polewicz, Bayer CropScience Inc., Saskatoon, Saskatchewan
Application Date: 2008-07-14
Application Number: 08-6404
Protective direction granted: 2008-07-14
Grant of Rights Date: 2010-02-24
Certificate Number: 3793
Grant of Rights Termination Date: 2028-02-24

Variety Description

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

Summary: 'PPS07-162 A-line' has a longer leaf than '5020'. The leaf margin of 'PPS07-162 A-line' has a lower density of dentations than 'PPS02-144 A-line' and '5020'. 'PPS07-162 A-line' has shallower leaf margin dentations than 'PPS02-144 A-line'. The petiole of 'PPS07-162 A-line' is shorter than in '5020'. 'PPS07-162 A-line' flowers later than 'PPS02-144 A-line' and 'PPS01-140 A-line'. The silique of 'PPS07-162 A-line' is shorter than in 'PPS02-144 A-line' and '5020'. 'PPS07-162 A-line' has a longer beak than 'PPS01-140 A-line' but shorter than 'PPS02-144 A-line' and '5020'. The pedicel of 'PPS07-162 A-line' is shorter than in '5020'. 'PPS07-162 A-line' matures later than the reference varieties.

Description:

PLANT: male sterile inbred line, spring seasonal type, short height at maturity

COTYLEDON: medium width and length

LEAF: medium green, medium number of lobes, rounded margin, low to medium density of shallow to moderately deep dentations, short, narrow, short to medium length petiole

FLOWER PETALS: yellow, short, narrow to medium width

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

SEED: black

AGRONOMIC CHARACTERISTICS: fair to good resistance to lodging

QUALITY CHARACTERISTICS: erucic acid is 0.2% of total fatty acids, oil content is 46.8% of whole dried seed, protein is 27.1% of dried oil free meal, medium glucosinolates (17.6 µmol/g)

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

Origin & Breeding History: 'PPS07-162 A-line' is a male sterile inbred line used in F1 hybrid production, that contains the Ms8 gene construct in heterozygous state. 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. Other selection criteria included height, vigour, maturity, blackleg resistance, oil content, fatty acid profile and glucosinolate content.

Tests & Trials: Tests and trials were conducted during the summers of 2007 and 2008 in Saskatoon, Saskatchewan. Plots consisted of 3 rows, with a row length of 6 metres and a row spacing of 40 cm. There were 2 replicates arranged in a RCB design.


Comparison tables for 'PPS07-162 A-line' with reference varieties 'PPS02-144 A-line', 'PPS01-140 A-line' and '5020'

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

Leaf length (mm)

  'PPS07-162 A-line' 'PPS02-144 A-line' 'PPS01-140 A-line' '5020'
mean (LSD=41) 175 180 174 259
std. deviation 22 22 21 27

Petiole length (mm)

  'PPS07-162 A-line' 'PPS02-144 A-line' 'PPS01-140 A-line' '5020'
mean (LSD=23) 94 85 94 130
std. deviation 16 16 17 18

Days to flowering

  'PPS07-162 A-line' 'PPS02-144 A-line' 'PPS01-140 A-line' '5020'
mean 47.5 43.5 47.0 41.5

Silique length (mm)

  'PPS07-162 A-line' 'PPS02-144 A-line' 'PPS01-140 A-line' '5020'
mean (LSD=6.4) 45.0 58.9 50.5 63.4
std. deviation 4.5 7.0 4.9 5.7

Beak length (mm)

  'PPS07-162 A-line' 'PPS02-144 A-line' 'PPS01-140 A-line' '5020'
mean (LSD=1.8) 10.2 12.6 6.9 12.8
std. deviation 1.3 1.6 1.4 1.6

Pedicel length (mm)

  'PPS07-162 A-line' 'PPS02-144 A-line' 'PPS01-140 A-line' '5020'
mean (LSD=3.5) 14.0 15.9 12.3 18.9
std. deviation 2.1 2.2 1.8 2.1

Days to maturity

  'PPS07-162 A-line' 'PPS02-144 A-line' 'PPS01-140 A-line' '5020'
mean 103 95 95 89

Click on image for larger view
PPS07-162 A-line
Canola: 'PPS07-162 A-Line' (left) with reference varieties 'PPS02-144 A-Line' (centre left), 'PPS01-140 A-Line' (centre right) and '5020' (right)

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