Denomination: 'N90-933'
Botanical Name: Brassica napus
Applicant/Holder: Agriculture & Agri-Food Canada, Saskatoon
Saskatoon Research Centre
107 Science Place
Saskatoon, Saskatchewan
S7N 0X2
Breeder: Gerhard Rakow, Agriculture & Agri-Food Canada, Saskatoon, Saskatchewan
Agent in Canada: Agriculture & Agri-Food Canada
Office of Intellectual Property and Commercialization
6000 C&E Trail
Lacombe, Alberta
T4L 1W1
Tel: (403) 782-8126
Application Date: 1995-05-15
Application Number: 95-533
Protective direction granted: 1995-05-15
Grant of Rights Date: 1999-11-22
Certificate Number: 0690
Date rights surrendered: 2014-11-22

Variety Description

Varieties used for comparison: 'Midas', 'Crésor' and 'Westar'

Summary: The cotyledon length of 'N90-933' is longer than that of 'Midas' and 'Crésor'. 'N90-933' is taller in plant height than 'Midas' and 'Westar' but is shorter than 'Crésor'. The silique beak of 'N90-933' is longer than that of 'Midas' with a shorter pedicel than that of 'Midas'.


'N90-933' is an open-pollinated spring canola variety. The cotyledon is medium to wide and the seedling stem anthocyanin colouration is very weak to weak. The largest lower leaf has very weak to weak lobe development and margins with very shallow to medium depth undulating to rounded indentation. Leaf blade glaucosity is weak. The plant is short to medium in height. The flowers are fertile and yellow in colour. The silique is short to medium in length. The silique beak is short to medium in length with a medium to long pedicel. The seed coat colour is black. Plants have fair lodging resistance.

Origin & Breeding History: 'N90-933' was developed at the Agriculture & Agri-Food Research Centre, Saskatoon, Saskatchewan. The original cross ('DO-195' x 'Westar') x 'Westar' was made in 1984. The pedigree method was used to select plants with early maturity, blackleg resistance, high oil and yield. 'N90-933' was tested as 'ACS-N12'.

Tests & Trials: Tests and trials for 'N90-933' were conducted at the Elora, Research Station, Elora, Ontario during 1995 and 1996. Trials were arranged in 2 replicates with 7 row plots.

Comparison tables for 'N90-933' with reference varieties 'Midas', 'Crésor' and 'Westar'

Cotyledon width (mm)

  'N90-933' 'Midas' 'Crésor' 'Westar'
mean 24.94 22.79 23.09 25.91

Plant height (cm)

  'N90-933' 'Midas' 'Crésor' 'Westar'
mean 119.18 112.83 137.33 112.15

Days to flowering

  'N90-933' 'Midas' 'Crésor' 'Westar'
days 50 51 67 50

Days to maturity

  'N90-933' 'Midas' 'Crésor' 'Westar'
days 97 100 105 100

Silique length (mm)

  'N90-933' 'Midas' 'Crésor' 'Westar'
mean 64.91 63.16 60.19 66.39

Silique beak length (mm)

  'N90-933' 'Midas' 'Crésor' 'Westar'
mean 9.65 13.41 10.48 10.15

Pedicel length (mm)

  'N90-933' 'Midas' 'Crésor' 'Westar'
mean 27.24 29.76 28.54 28.28
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