|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:||2006-06-08|
|Grant of Rights Date:||2008-05-26|
|Exemption from compulsory licensing:||Yes|
|Expiry date for exemption from compulsory licensing:||2010-05-26|
|Date rights surrendered:||2015-02-11|
Varieties used for comparison: 'PPS98-274', 'PPS02-364' and 'Ebony'
Summary: 'PPS05-250' flowers later than 'PPS02-364'. The pedicel of 'PPS05-250' is shorter than 'PPS98-274'. 'PPS05-250' matures later than 'PPS98-274', 'PPS02-364' and 'Ebony'. 'PPS05-250' is resistant to glufosinate ammonium herbicides while 'Ebony' is not.
PLANT: male fertile line, glufosinate ammonium resistant, spring seasonal type, medium height at maturity
COTYLEDON: medium width, medium length
LEAF: medium green, few lobes, rounded to sharp margin, low to medium density of shallow to medium depth dentations, medium length, medium to broad width, short to medium petiole
FLOWERS: yellow, petals short to medium in length, narrow to medium in width
SILIQUE: semi-erect attitude, medium length, medium width, medium length beak, medium length pedicel
AGRONOMIC CHARACTERISTICS: good resistance to lodging
QUALITY CHARACTERISTICS: erucic acid 0.01% of total fatty acids, oil content 51.3% of whole dried seed, protein 22.9% of dried oil free meal, low glucosinolates 13.3 µmol/g
DISEASE RESISTANCE: resistant to Blackleg (Leptosphaeria maculans asexual stage: Phoma lingam) and White Rust (Albugo candida, races 7a & 2v)
Origin & Breeding History: 'PPS05-250' is a restorer line (R-line in the process of F1 hybrid production). 'PPS05-250' was derived as a doubled haploid line 04-239-023 containing the Rf3 gene in a homozygous state. The cross was made in Canada in 2003 and the DH line extraction was made in Canada in 2003/2004. The pedigree of 'PPS05-250' is as follows: 02NN300302/01NN202767. 'PPS05-250' was selected in 2004 and 2005 on the basis of fertility restoration of numerous male sterile lines and expression of tolerance to glufosinate-ammonium herbicide. Other selection parameters included: height, vigour, maturity, blackleg resistance, oil content, fatty acid profile, glucosinolate content and combining ability. Breeder Seed production commenced in the 2005 season.
Tests & Trials: Test and trials were conducted in Saskatoon, Saskatchewan during the summers of 2005 and 2006. There were two replications arranged in a randomized complete block design. Each plot consisted of 3 rows that were spaced 50 centimeters apart with a row length of 6 meters.
Comparison tables for 'PPS05-250' with reference varieties 'PPS98-274', 'PPS02-364' and 'Ebony'
Means are based on a two year average of 60 plant parts for pedicel characteristics. Differences are significant at the 2% probability level based on LSD values.
Days to flowering (days from planting to when 50% of plants show one or more open flowers)
|significance||N/A||not significant||p less than 0.01||not significant|
Pedicel length (mm)
|significance||N/A||p less than 0.01||not significant||not significant|
Maturity (days from planting to maturity)
|significance||N/A||p less than 0.01||p less than 0.01||p less than 0.01|
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