PPS07-288

Canola

Denomination: 'PPS07-288'
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: 2008-07-14
Application Number: 08-6407
Protective direction granted: 2008-07-14
Grant of Rights Date: 2010-02-24
Certificate Number: 3796
Date rights surrendered: 2015-02-11

Variety Description

Varieties used for comparison: 'PPS98-274', 'PPS02-364' and '5030'

Summary: The petiole of 'PPS07-288' is shorter than in '5030'. 'PPS07-288' flowers later than 'PPS02-364'. The flower petal of 'PPS07-288' is shorter than in 'PPS98-274. 'PPS07-288' has a shorter plant height at maturity than 'PPS98-274' and '5030'. The silique of 'PPS07-288' is longer than in 'PPS02-364' and '5030'. 'PPS07-288' has a shorter beak than 'PPS02-364'.

Description:

PLANT: low linolenic male fertile restorer line, spring seasonal type, short to medium height at maturity

COTYLEDON: medium width and length

LEAF: medium green, medium number of lobes, sharp margin, medium to dense density of medium depth dentations, short to medium length, medium to wide width, short petiole

FLOWER PETALS: yellow, short to medium length, narrow

SILIQUE: horizontal attitude, long to very long, narrow to medium width, medium length beak, medium to long pedicel

SEED: black

AGRONOMIC CHARACTERISTICS: fair to good resistance to lodging

QUALITY CHARACTERISTICS: erucic acid is 0.005% of total fatty acids, oil content is 47.6% of whole dried seed, protein is 24.6% of dried oil free meal, low glucosinolates (11.39 µmol/g)

HERBICIDE RESISTANCE: tolerant to glufosinate ammonium herbicides

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

Origin & Breeding History: 'PPS07-288' is a low linolenic restorer line in the process of F1 hybrid production. It was derived as a doubled haploid containing the Rf3 gene in homozygous state. The initial cross occurred in 2004 in Canada with the double haploid extraction occurring in 2004/2005. 'PPS07-288' was selected in 2006 and 2007 on the basis of fertility restoration and expression of tolerance to glufosinate ammonium herbicides. Other selection criteria included linolenic acid content, height, vigour, maturity, blackleg resistance, oil content, fatty acid profile, glucosinolate content and combining ability.

Tests & Trials: Tests and trials were conducted during the summers of 2007 and 2008 in Saskatoon, Saskatchewan. Plots consisted of 3 rows, with a row length of 6 metres and a row spacing of 40 cm. There were 2 replicates arranged in a RCB design.


Comparison tables for 'PPS07-288' with reference varieties 'PPS98-274', 'PPS02-364' and '5030'

Means are based on a two year average of 60 plant parts for flower, petiole, silique, and beak characteristcs. Differences are significant at the 2% probability level based on LSD values.

Days to flowering

  'PPS07-288' 'PPS98-274' 'PPS02-364' '5030'
mean 44.8 46.7 42.0 44.8

Flower petal length (mm)

  'PPS07-288' 'PPS98-274' 'PPS02-364' '5030'
mean (LSD=1.3) 13.4 14.8 14.2 14.6
std. deviation 1.0 0.9 0.9 0.8

Petiole length (mm)

  'PPS07-288' 'PPS98-274' 'PPS02-364' '5030'
mean (LSD=23) 101 115 103 136
std. deviation 16 21 20 19

Silique length (mm)

  'PPS07-288' 'PPS98-274' 'PPS02-364' '5030'
mean (LSD=6.4) 67.1 62.6 58.7 60.5
std. deviation 5.9 4.2 5.2 5.2

Beak length (mm)

  'PPS07-288' 'PPS98-274' 'PPS02-364' '5030'
mean (LSD=1.8) 10.2 11.8 12.0 10.7
std. deviation 1.7 1.3 1.4 1.0

Plant height at maturity (cm)

  'PPS07-288' 'PPS98-274' 'PPS02-364' '5030'
mean (LSD=15) 117.5 132.0 112.5 138
std. deviation 6.3 7.4 5.3 8.9

Click on image for larger view
PPS07-288
Canola: 'PPS07-288' (left) with reference varieties 'PPS98-274' (centre left), 'PPS02-364' (centre right) and '5030' (right)

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