PPS02-368
| Denomination: | 'PPS02-368' |
|---|---|
| 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: | 2005-06-17(priority claimed) |
| Application Number: | 05-4971 |
| Protective direction granted: | 2005-06-17 |
| Grant of Rights Date: | 2007-05-15 |
| Certificate Number: | 2735 |
| Exemption from compulsory licensing: | Yes |
| Expiry date for exemption from compulsory licensing: | 2009-05-15 |
| Date rights surrendered: | 2015-02-11 |
Variety Description
Varieties used for comparison: 'PPS98-274', 'PPS02-364' and 'Ebony'
Summary: 'PPS02-368' flowers later than the reference varieties. The flower petal of 'PPS02-368' is slightly narrower than 'PPS02-364' and 'Ebony'. 'PPS02-368' has a shorter beak than the reference varieties. At maturity, the plant height of 'PPS02-368' is taller than the reference varieties. 'PPS02-368' has a higher oil content, in percentage of whole dried seed than 'PPS98-274'. The glucosinolate levels of 'PPS02-368' is lower than in 'PPS98-274' and 'Ebony'. 'PPS02-368' is resistant to glufosinate ammonium herbicides while 'Ebony' is not. The blackleg resistance of 'PPS02-368' is slightly better than in 'Ebony'.
Description:
PLANT: inbred, glufosinate ammonium resistant, spring seasonal type, tall to very tall plant height at maturity
COTYLEDON: narrow to medium, medium length
LEAF: medium green, very few to few number of lobes, sharp type margin, medium density of shallow to medium depth dentations, medium to long, wide, medium to long petiole
FLOWERS: yellow, petals medium in length and width
SILIQUE: semi-erect to horizontal attitude, medium length and width, short beak, medium length pedicel
SEED: black
AGRONOMIC CHARACTERISTICS: good resistance to lodging
QUALITY CHARACTERISTICS: erucic acid 0.01% of total fatty acids, oil content 48.9% 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 (Albuga candida, races 7a & 2v)
Origin & Breeding History: 'PPS02-368' is a restorer line in the process of F1 hybrid production. It was derived as a doubled haploid line 99-97-299 containing the Rf3 gene in the homozygous state, from a cross and doubled haploid extraction made in Canada in 1999. The pedigree is as follows: 99NN101205 // 99CBN092/99CBN093. 'PPS02-368' was selected in 2001, 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 'PPS02-368' 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.
Days to flowering
| 'PPS02-368' | 'PPS98-274' | 'PPS02-364' | 'Ebony' | |
|---|---|---|---|---|
| mean | 51.0 | 48.5 | 45.5 | 47.5 |
Flower petal width (mm)
| 'PPS02-368' | 'PPS98-274' | 'PPS02-364' | 'Ebony' | |
|---|---|---|---|---|
| mean | 5.5 | 6.0 | 6.25 | 7.55 |
| std. deviation | 0.764 | 0.529 | 0.887 | 0.996 |
Beak length (mm)
| 'PPS02-368' | 'PPS98-274' | 'PPS02-364' | 'Ebony' | |
|---|---|---|---|---|
| mean | 9.2 | 11.7 | 12.3 | 14.3 |
| std. deviation | 1.311 | 1.547 | 1.761 | 2.463 |
Plant height at maturity (cm)
| 'PPS02-368' | 'PPS98-274' | 'PPS02-364' | 'Ebony' | |
|---|---|---|---|---|
| mean | 142 | 131 | 112 | 123 |
| std. deviation | 12.178 | 7.545 | 6.711 | 8.658 |
Oil content (% of whole dried seed)
| 'PPS02-368' | 'PPS98-274' | 'PPS02-364' | 'Ebony' | |
|---|---|---|---|---|
| mean | 48.9 | 45.7 | 48.7 | 48.6 |
Glucosinolates (µmol/g)
| 'PPS02-368' | 'PPS98-274' | 'PPS02-364' | 'Ebony' | |
|---|---|---|---|---|
| mean | 7.01 | 10.5 | 6.75 | 9.3 |
Click on image for larger view
Canola: Variety 'PPS02-368' (left) with reference varieties 'PPS98-274' (center left), 'PPS02-364' (center right) and 'Ebony' (right)
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