PPS06-155 A-Line

Canola

Variety Description

Varieties used for comparison: 'PPS02-144 A-Line', 'PPS03-149 A-Line', 'PPS01-140 A-Line' and 'Ebony'

Summary: 'PPS06-155 A-Line' has a wider cotyledon than 'PPS01-140 A-Line' and narrower cotyledon than 'PPS03-149 A-Line'. The cotyledon of 'PPS06-155 A-Line' is slightly shorter than that of 'PPS03-149 A-Line' and longer than that of 'PPS01-140 A-Line'. 'PPS06-155 A-Line' has deeper leaf margin dentations than 'PPS01-140 A-Line' and 'PPS03-149 A-Line'. 'PPS06-155 A-Line' matures slightly later than 'PPS03-149 A-Line' and 'Ebony'. The silique attitude of 'PPS06-155 A-Line' is horizontal while it is semi-erect for 'PPS03-149 A-Line' and 'Ebony'. 'PPS06-155 A-Line' has a longer silique and beak than 'PPS01-140 A-Line'. The pedicel of 'PPS06-155 A-Line' is shorter than that of 'Ebony' and longer than that of 'PPS01-140 A-Line'. 'PPS06-155 A-Line' has better lodging resistance than 'PPS01-140 A-Line' and 'PPS02-144 A-Line'. 'PPS06-155 A-Line' has resistance to glufosinate ammonium herbicides while 'Ebony' does not. 'PPS06-155 A-Line' contains higher levels of glucosinolates than 'PPS01-140 A-Line' and 'PPS03-149 A-Line'. 'PPS06-155 A-Line' has better resistance to Blackleg than 'PPS01-140 A-Line', 'PPS02-144 A-Line' and 'Ebony'. The anthers of 'PPS06-155 A-Line' are sterile while those of 'Ebony' are fertile.

Description:

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

COTYLEDON: medium to wide, medium to long

LEAF: light green, few to medium number of lobes, sharp margin, medium density of moderately deep dentations, short to medium length, narrow to medium width, short to medium length petiole

FLOWER PETALS: yellow, short to medium length, medium to wide

SILIQUE: horizontal attitude, medium length, medium to wide, medium to long beak, short to medium length pedicel

SEED: black

AGRONOMIC CHARACTERISTICS: fair to good resistance to lodging

QUALITY CHARACTERISTICS: erucic acid is 0.14% of total fatty acids, oil content is 47.8% of whole dried seed, protein is 25.8% of dried oil free meal, high glucosinolates (23.2 µmol/g)

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

Origin & Breeding History: 'PPS06-155 A-Line' is a male sterile line containing the Ms8 gene construct in the heterozygous state. It was derived by backcrossing the doubled haploid line '98-55-013' which contains the Ms8 gene to the doubled haploid line '01-120-223' in 2003. '98-55-013' was extracted from the F1 generation of the cross 97CGH406/97CGH409. '01-120-223' is a doubled haploid line extracted from the F1 generation of the cross 00NN100821/99NN018217. 'PPS06-155 A-Line' was selected in 2005 on the basis of its male sterility stability, expression of tolerance to glufosinate-ammonium herbicide, good combining ability, height, vigour, maturity, blackleg resistance, oil content, fatty acid profile, and glucosinolates content.

Tests & Trials: Trials were conducted during the summers of 2006 and 2007 in Saskatoon, Saskatchewan. Plots consisted of 3 rows, with a row spacing of 50 centimeters and a row length of 6 meters. There were two replicates arranged in a RCB design.

Comparison tables for 'PPS06-155 A-Line' with reference varieties 'PPS02-144 A-Line', 'PPS03-149 A-Line', 'PPS01-140 A-Line' and 'Ebony'

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

Cotyledon length (mm)

Cotyledon width (mm)

Days to maturity

Silique length (mm)

Beak length (mm)

Pedicel length (mm)

Click on image for larger view

Canola: 'PPS06-155 A-Line' (far left) with reference varieties 'PPS02-144 A-Line' (left), 'PPS01-140 A-Line' (centre), 'PPS03-149 A-Line' (right) and 'Ebony' (far right)