PPS03-383

Canola

Denomination: 'PPS03-383'
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
Application Number: 05-4970
Protective direction granted: 2005-06-17
Grant of Rights Date: 2007-05-15
Certificate Number: 2734
Exemption from compulsory licensing: Yes
Expiry date for exemption from compulsory licensing: 2009-05-15
Date rights surrendered: 2008-05-27

Variety Description

Varieties used for comparison: 'PPS98-274', 'PPS02-364' and 'Ebony'

Summary: 'PPS03-383' has a wider cotyledon than 'PPS98-274', 'PPS02-364' and 'Ebony'. The leaf of 'PPS03-383' is narrower than 'Ebony'. 'PPS03-383' has a longer petiole than 'PPS02-364'. The days to flowering of 'PPS03-383' is later than 'PPS02-364' and 'Ebony'. 'PPS03-383' has a shorter flower petal than the reference varieties. The flower petal of 'PPS03-383' is narrower than 'Ebony'. 'PPS03-383' has a shorter silique than the reference varieties. The silique of 'PPS03-383' is slightly wider than 'PPS98-274' and 'PPS02-364'. 'PPS03-383' has a shorter beak than 'PPS02-364' and 'Ebony'. The pedicel of 'PPS03-383' is shorter than 'PPS98-274' but longer than 'PPS02-364'. 'PPS03-383' has a shorter plant height at maturity than 'PPS98-274' and 'Ebony'. The oil content as a % in whole dried seed of 'PPS03-383' is lower than 'PPS02-364' and 'Ebony'. 'PPS03-383' has lower protein content as a % of dried oil free meal than 'PPS98-274'.

Description:

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

COTYLEDON: wide, medium length

LEAF: medium green, very few to few number of lobes, sharp type margin, medium density of medium depth dentations, medium to long, narrow to medium, medium to long petiole

FLOWERS: yellow, petals short to medium in length and medium to wide

SILIQUE: semi-erect to horizontal attitude, very short to short, medium to wide, short beak, medium to long pedicel

SEED: black

AGRONOMIC CHARACTERISTICS: good resistance to lodging

QUALITY CHARACTERISTICS: erucic acid 0.03% of total fatty acids, oil content 46.4% of whole dried seed, protein 23.9% of dried oil free meal, low glucosinolates less than 20 µmol/g

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

Origin & Breeding History: 'PPS03-383' is a restorer line in the process of F1 hybrid production. It was derived as a doubled haploid line 01-136-029 containing the Rf3 gene in homozygous state from a cross and doubled haploid extraction made in Canada in 2001. The pedigree is as follows: 99NN302116 / 98NN101159. 'PPS03-383' 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 'PPS03-383' 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.

Cotyledon width (mm)

  'PPS03-383' 'PPS98-274' 'PPS02-364' 'Ebony'
mean 28.8 25.1 25.3 24.3
std. deviation 5.112 5.273 4.472 5.085

Leaf width (mm)

  'PPS03-383' 'PPS98-274' 'PPS02-364' 'Ebony'
mean 79.8 89.3 86.3 93.5
std. deviation 14.260 20.333 16.718 16.883

Petiole length (mm)

  'PPS03-383' 'PPS98-274' 'PPS02-364' 'Ebony'
mean 104.3 90.0 79.3 104.3
std. deviation 22.611 33.412 19.785 27.272

Days to flowering

  'PPS03-383' 'PPS98-274' 'PPS02-364' 'Ebony'
mean 49.5 48.5 45.5 47.5

Flower petal length (mm)

  'PPS03-383' 'PPS98-274' 'PPS02-364' 'Ebony'
mean 12.8 14.5 14.5 14.5
std. deviation 1.037 0.892 1.251 1.104

Flower petal width (mm)

  'PPS03-383' 'PPS98-274' 'PPS02-364' 'Ebony'
mean 6.75 6.0 6.25 7.55
std. deviation 0.955 0.529 0.887 0.996

Silique length (mm)

  'PPS03-383' 'PPS98-274' 'PPS02-364' 'Ebony'
mean 46.9 65.0 65.2 65.4
std. deviation 4.434 7.651 5.744 8.589

Silique width (mm)

  'PPS03-383' 'PPS98-274' 'PPS02-364' 'Ebony'
mean 5.2 4.5 4.3 5.0
std. deviation 0.450 0.535 0.441 0.450

Beak length (mm)

  'PPS03-383' 'PPS98-274' 'PPS02-364' 'Ebony'
mean 9.2 11.7 12.3 14.3
std. deviation 1.761 1.547 1.761 2.463

Pedicel length (mm)

  'PPS03-383' 'PPS98-274' 'PPS02-364' 'Ebony'
mean 22.7 25.0 19.3 21.7
std. deviation 3.942 3.160 2.499 2.499

Plant height at maturity (cm)

  'PPS03-383' 'PPS98-274' 'PPS02-364' 'Ebony'
mean 114 131 113 123
std. deviation 6.065 7.545 6.711 8.658

Oil content (% of whole dried seed)

  'PPS03-383' 'PPS98-274' 'PPS02-364' 'Ebony'
mean 46.4 45.7 48.7 48.6

Protein content (% dried oil free meal)

  'PPS03-383' 'PPS98-274' 'PPS02-364' 'Ebony'
mean 23.9 25.7 24.2 24.3

Click on image for larger view
PPS03-383
Canola: 'PPS03-383' (left) with reference varieties 'PPS98-274' (center left), 'PPS02-364' (center right) and 'Ebony' (right)

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