PPS05-250
| Denomination: | 'PPS05-250' |
|---|---|
| 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: | 2006-06-08(priority claimed) |
| Application Number: | 06-5498 |
| Protective direction granted: | 2006-06-08 |
| Grant of Rights Date: | 2008-05-26 |
| Certificate Number: | 3211 |
| Exemption from compulsory licensing: | Yes |
| Expiry date for exemption from compulsory licensing: | 2010-05-26 |
| Date rights surrendered: | 2015-02-11 |
Variety Description
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.
Description:
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
SEED: black
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)
| 'PPS05-250' | 'PPS98-274' | 'PPS02-364' | 'Ebony' | |
|---|---|---|---|---|
| mean | 43.7 | 43.0 | 40.5 | 43.2 |
| significance | N/A | not significant | p less than 0.01 | not significant |
Pedicel length (mm)
| 'PPS05-250' | 'PPS98-274' | 'PPS02-364' | 'Ebony' | |
|---|---|---|---|---|
| mean | 18.5 | 22.9 | 18.6 | 20.0 |
| significance | N/A | p less than 0.01 | not significant | not significant |
Maturity (days from planting to maturity)
| 'PPS05-250' | 'PPS98-274' | 'PPS02-364' | 'Ebony' | |
|---|---|---|---|---|
| mean | 103 | 96 | 95 | 98 |
| significance | N/A | p less than 0.01 | p less than 0.01 | p less than 0.01 |
Click on image for larger view
Canola: 'PPS05-250' (far left) with reference varieties 'PPS98-274' (left center), 'PPS02-364' (right center) and 'Ebony' (far right)
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