PPS08-168 B-Line


Denomination: 'PPS08-168 B-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: 09-6698
Protective direction granted: 2009-07-21
Grant of Rights Date: 2011-02-22
Certificate Number: 4011
Exemption from compulsory licensing: Yes
Expiry date for exemption from compulsory licensing: 2013-02-22
Grant of Rights Termination Date: 2029-02-22

Variety Description

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

Summary: 'PPS08-168 B-Line' flowers later than 'PPS02-144 B-Line' and '5020'. The flower petal of 'PPS08-168 B-Line' is shorter than that of 'PPS02-144 B-Line' and '5020'. 'PPS08-168 B-Line' has a taller plant height at maturity than that of 'PPS02-144 B-Line'. The silique of 'PPS08-168 B-Line' is shorter than that of 'PPS02-144 B-Line' and '5020'. 'PPS08-168 B-Line' has a shorter beak than that of 'PPS02-144 B-Line' and '5020' but longer than that of 'PPS01-140 B-Line'. The seed of 'PPS08-168 B-Line' has a higher oil content than that of 'PPS01-140 B-Line' and lower protein levels than 'PPS01-140 B-Line' and 'PPS02-144 B-Line'.


PLANT: male fertile inbred line, spring seasonal type, medium height at maturity

COTYLEDON: medium to wide, medium to long

LEAF: medium green, few to medium number of lobes, rounded margin, low density of shallow dentations, medium length, medium width, medium to long petiole

FLOWER PETALS: yellow, medium to long, medium to wide

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

SEED: black

AGRONOMIC CHARACTERISTICS: good resistance to lodging

QUALITY CHARACTERISTICS: erucic acid is 0.02% of total fatty acids, oil content is 52.5% of whole dried seed, protein is 22.9% of dried oil free meal, medium glucosinolates (17.6 µmol/g)

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

Origin & Breeding History: 'PPS08-168 B-line' is a male fertile maintainer line of 'PPS08-168 A-line'. 'PPS08-168 B-line' is a doubled haploid line that was produced in Canada in 2003. 'PPS08-168 B-line' was selected in 2005 and 2006 on the basis of 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 'PPS08-168 B-Line' with reference varieties 'PPS01-140 B-Line', 'PPS02-144 B-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.

Days to flowering

  'PPS08-168 B-Line' 'PPS01-140 B-Line' 'PPS02-144 B-Line' '5020'
mean (LSD=2.4) 46.5 45.0 41.5 42.0

Flower petal length (mm)

  'PPS08-168 B-Line' 'PPS01-140 B-Line' 'PPS02-144 B-Line' '5020'
mean (LSD=1.2) 15.4 14.6 17.3 17.1
std. deviation 0.7 0.7 1.1 0.8

Plant height at maturity (cm)

  'PPS08-168 B-Line' 'PPS01-140 B-Line' 'PPS02-144 B-Line' '5020'
mean (LSD=12) 135 135 111 129
std. deviation 7.1 6.1 6.3 8.1

Silique length (mm)

  'PPS08-168 B-Line' 'PPS01-140 B-Line' 'PPS02-144 B-Line' '5020'
mean (LSD=2) 59.2 57.4 62.3 65.4
std. deviation 3.7 4.0 5.5 5.0

Beak length (mm)

  'PPS08-168 B-Line' 'PPS01-140 B-Line' 'PPS02-144 B-Line' '5020'
mean (LSD=0.6) 11.8 8.5 15.5 14.6
std. deviation 1.3 1.4 1.6 1.7

Oil content of the seed (% in whole dried seed)

  'PPS08-168 B-Line' 'PPS01-140 B-Line' 'PPS02-144 B-Line' '5020'
mean (LSD=4.0) 52.5 46.1 49.6 48.9

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

  'PPS08-168 B-Line' 'PPS01-140 B-Line' 'PPS02-144 B-Line' '5020'
mean (LSD=2.6) 22.9 26.9 25.4 24.6

Click on image for larger view
PPS08-168 B-Line
Canola: 'PPS08-168 B-Line' (far left) with reference varieties 'PPS01-140 B-Line' (centre left), 'PPS02-144 B-Line' (centre right) and '5020' (far right)

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