PPS08-169 B-Line

Rapeseed

Denomination: 'PPS08-169 B-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: 2009-07-21
Application Number: 09-6700
Protective direction granted: 2009-07-21
Grant of Rights Date: 2011-02-22
Certificate Number: 4013
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 B-Line', 'PPS02-144 B-Line' and '5020'

Summary: The cotyledon of 'PPS08-169 B-Line' is longer and wider than that of 'PPS01-140 B-Line'. 'PPS08-169 B-Line' has a light green leaf colour while it is medium green in 'PPS01-140 B-Line' and '5020'. The leaf margin of 'PPS08-169 B-Line' has a very low to low density of dentations while it is medium density for '5020'. 'PPS08-169 B-Line' has a long petiole while it is short to medium for 'PPS02-144 B-Line'. The flower petal of 'PPS08-169 B-Line' is longer than that of 'PPS01-140 B-Line'. 'PPS08-169 B-Line' flowers earlier than that of 'PPS01-140 B-Line'. The silique of 'PPS08-169 B-Line' is longer than that of 'PPS01-140 B-Line' but shorter than that of '5020'. 'PPS08-169 B-Line' has a medium to long beak while it is short for 'PPS01-140 B-Line'. The plant height of 'PPS08-169 B-Line' at maturity is taller than that of 'PPS02-144 B-Line'. The seed of 'PPS08-169 B-Line' has higher erucic acid levels and oil content than the reference varieties.

Description:

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

COTYLEDON: medium to wide, long

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

FLOWER PETALS: yellow, long, medium to wide

SILIQUE: semi-erect attitude, medium to long, wide, medium to long beak, medium length pedicel

SEED: black

AGRONOMIC CHARACTERISTICS: fair resistance to lodging

QUALITY CHARACTERISTICS: erucic acid is 44.0% of total fatty acids, oil content is 54.1% of whole dried seed, protein is 26.6% of dried oil free meal, low glucosinolates (10.3 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: 'PPS08-169 B-line' is a male fertile maintainer line of 'PPS08-169 A-line'. The initial cross took place in Canada in 2000, with subsequent backcrosses occurring in 2003 and 2004. 'PPS08-169 B-line' was selected in 2005 and 2006 on the basis of erucic acid content, 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 'PPS08-169 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.

Cotyledon width (mm)

  'PPS08-169 B-Line' 'PPS01-140 B-Line' 'PPS02-144 B-Line' '5020'
mean (LSD=3.8) 29.2 25.4 29.8 27.7
std. deviation 2.8 1.9 3.1 3.3

Cotyledon length (mm)

  'PPS08-169 B-Line' 'PPS01-140 B-Line' 'PPS02-144 B-Line' '5020'
mean (LSD=2.9) 16.6 13.6 17.3 15.8
std. deviation 1.6 1.1 1.9 1.5

Petiole length (mm)

  'PPS08-169 B-Line' 'PPS01-140 B-Line' 'PPS02-144 B-Line' '5020'
mean (LSD=17) 119 110 98 112
std. deviation 19.5 13.8 13.1 14.9

Days to flowering

  'PPS08-169 B-Line' 'PPS01-140 B-Line' 'PPS02-144 B-Line' '5020'
mean (LSD=2.4) 42.5 45.0 41.5 42.0

Flower petal length (mm)

  'PPS08-169 B-Line' 'PPS01-140 B-Line' 'PPS02-144 B-Line' '5020'
mean (LSD=1.2) 16.8 14.6 17.3 17.1
std. deviation 0.9 0.7 1.1 0.8

Silique length (mm)

  'PPS08-169 B-Line' 'PPS01-140 B-Line' 'PPS02-144 B-Line' '5020'
mean (LSD=2) 61.1 57.4 62.3 65.4
std. deviation 6.2 4.0 5.5 5.0

Beak length (mm)

  'PPS08-169 B-Line' 'PPS01-140 B-Line' 'PPS02-144 B-Line' '5020'
mean (LSD=0.6) 13.3 8.5 15.5 14.6
std. deviation 1.4 1.4 1.6 1.7

Plant height at maturity (cm)

  'PPS08-169 B-Line' 'PPS01-140 B-Line' 'PPS02-144 B-Line' '5020'
mean (LSD=12) 125 135 111 129
std. deviation 7.3 6.1 6.3 8.1

Erucic acid (% of total fatty acids)

  'PPS08-169 B-Line' 'PPS01-140 B-Line' 'PPS02-144 B-Line' '5020'
mean 44.0 0.04 0.02 0.03

Oil content of seed (% in whole dried seed)

  'PPS08-169 B-Line' 'PPS01-140 B-Line' 'PPS02-144 B-Line' '5020'
mean (LSD=4.0) 54.1 46.1 49.6 48.9

Click on image for larger view
PPS08-169 B-Line
Rapeseed: 'PPS08-169 B-Line' (far left) with reference varieties 'PPS01-140 B-Line' (centre left), 'PPS02-144 B-Line' (centre right) and '5020' (far right)

Date modified: