|Botanical Name:||Brassica napus|
Bayer CropScience Inc.
Site 600, R.R. #6
P.O. Box 117
Stewart Brandt, Bayer CropScience Inc., Saskatoon, Saskatchewan
Varieties used for comparison: 'PB1CN231', 'PPS01-140 B-Line' and '5440'
Summary: The cotyledon of 'PB4CN280' is wider than that of 'PB1CN231'. The petal of 'PB4CN280' is larger than that of 'PB1CN231' and it is longer than that of 'PPS01-140 B-Line'. The silique and pedicel of 'PB4CN280' are longer than those of 'PB1CN231' and 'PPS01-140 B-Line'. 'PB4CN280' has a longer beak than that of 'PPS01-140 B-Line'. At maturity, the plant of 'PB4CN280' is taller than that of 'PB1CN231'. The seed coat of 'PB4CN280' is black whereas it is brown for 'PB1CN231'. 'PB4CN280' is susceptible to glufosinate ammonium herbicides whereas '5440' is resistant.
PLANT: male fertile inbred line, spring type, medium to tall at maturity
COTYLEDON: medium to wide, medium to long
LEAF: medium green, medium number of lobes, rounded margin, medium density of medium depth margin dentations, short, narrow to medium width, short to medium length petiole
FLOWER PETAL: yellow, medium length and width
SILIQUE: horizontal attitude, long, short to medium length beak, short to medium length pedicel
SEED COAT: black
AGRONOMIC CHARACTERISTICS: medium to good resistance to lodging
QUALITY CHARACTERISTICS: no erucic acid, oil content is 43.8% of whole dried seed, protein is 42.7% of dried oil free meal, medium glucosinolates (16.3 µmol/g)
CHEMICAL REACTION: susceptible to glufosinate ammonium herbicides
DISEASE REACTION: resistant to Blackleg (Leptosphaeria maculans asexual stage: Phoma lingam)
Origin & Breeding History: 'PB4CN280' is the male fertile maintainer line of 'PA4CN180'. It is a non-transgenic double haploid line which was extracted in 2010 from the F1 generation of a cross produced at Bayer CropScience in Saskatoon, Canada in 2009. 'PB4CN280' was selected in 2013 and 2014 on the basis of per se performance of height, vigour, maturity, blackleg resistance, oil content, fatty acid profile and glucosinolate content.
Tests & Trials: The comparative trials conducted during the summers of 2014 and 2015 in Saskatoon, Saskatchewan were set up in a RCB Design with 3 replications per variety. Each year, the plots consisted of 3 rows that were 6 metres in length with a spacing of 25 cm between rows and 50 cm between plots. The measured characteristics were based on 30 measurements of the cotyledon, leaf, flower and plant height and 60 measurements of the silique. The means were based on a two year average. Mean differences were significant at the 2% probability level based on LSD values.
Comparison tables for 'PB4CN280' with reference varieties 'PB1CN231', 'PPS01-140 B-Line' and '5440'
Cotyledon width (mm)
Flower petal length (mm)
Flower petal width (mm)
Silique length (mm)
Beak length (mm)
Pedicel length (mm)
Plant height at maturity (cm)
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