|Botanical Name:||Brassica napus|
Bayer CropScience Inc.
Site 600, R.R. #6
P.O. Box 117
Hieronim Polewicz, Bayer CropScience Inc., Saskatoon, Saskatchewan
|Protective direction granted:||2005-06-17|
|Grant of Rights Date:||2007-05-15|
|Exemption from compulsory licensing:||Yes|
|Expiry date for exemption from compulsory licensing:||2009-05-15|
|Date rights surrendered:||2008-05-27|
Varieties used for comparison: 'PPS98-274', 'PPS02-364' and 'Ebony'
Summary: 'PPS04-393' has a shorter leaf and petiole than 'Ebony'. The days to flowering of 'PPS04-393' is later than 'PPS02-364' and 'Ebony'. 'PPS04-393' has a narrower flower petal than 'Ebony'. The silique of 'PPS04-393' is slightly narrower than 'Ebony'. 'PPS04-393' has a shorter beak than 'PPS02-364' and 'Ebony'. The pedicel 'PPS04-393' is shorter than 'PPS98-274' but longer than 'PPS02-364'. 'PPS04-393' has a shorter plant height at maturity than the reference varieties. The oil content as a % in whole dried seed of 'PPS04-393' is higher than 'PPS98-274'.
PLANT: inbred, glufosinate ammonium resistant, spring seasonal type, short to medium height at maturity
COTYLEDON: medium width, short to medium
LEAF: medium green, very few to few number of lobes, sharp type margin, medium to dense density of medium depth dentations, medium length and width, medium length petiole
FLOWERS: yellow, petals medium in length and width
SILIQUE: erect attitude, medium to long, narrow width, short to medium beak, medium length pedicel
AGRONOMIC CHARACTERISTICS: good resistance to lodging
QUALITY CHARACTERISTICS: erucic acid 0.01% of total fatty acids, oil content 47.4% of whole dried seed, protein 24.1% of dried oil free meal, very low glucosinolates less than 10 µmol/g
DISEASE RESISTANCE: resistant to Blackleg (Leptosphaeria maculans asexual stage: Phoma lingam) and White Rust (Albugo candida, races 7a & 2v)
Origin & Breeding History: 'PPS04-393' is a restorer line in the process of F1 hybrid production. It was derived as a doubled haploid line 99-98-049 containing the Rf3 gene in homozygous state from a cross and doubled haploid extraction made in Canada in 2000. The pedigree is as follows: 97CGH123 / 96CGH089 // 96CGH067 / 96CGH095. 'PPS04-393' was selected in 2002, on the basis of fertility restoration and expression of tolerance to glufosinate ammonium herbicide. Other selection criteria were height, vigour, maturity, blackleg resistance, oil content, fatty acid profile, glucosinolate content and combining ability.
Tests & Trials: Test and trials were conducted in Saskatoon, Saskatchewan during the summers of 2004 and 2005. Plots consisted of 3 rows that were spaced 50 cm apart with a row length of 6 meters. There were two replicates arranged in a RCB design.
Comparison tables for 'PPS04-393' with reference varieties 'PPS98-274', 'PPS02-364' and 'Ebony'
Means are based on a two year average of 60 plant parts for silique, 60 for leaf and petal characteristics, 60 for height and 40 cotyledon measurements. Differences are significant at the 2% probability level based on LSD values.
Leaf length (mm)
Petiole length (mm)
Days to flowering
Flower petal width (mm)
Silique width (mm)
Beak length (mm)
Plant height at maturity (cm)
Oil content (% of whole dried seed)
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