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AAC Edward


Denomination: 'AAC Edward'
Previously Proposed Denomination: 'OT11-01'
Botanical Name: Glycine max
Applicant/Holder: Agriculture & Agri-Food Canada, Ottawa
Ottawa Research and Development Centre
Room 1093A - 960 Carling Avenue
Ottawa, Ontario
K1A 0C6
Breeder: Elroy Cober, Agriculture & Agri-Food Canada, Ottawa, Ontario
Agent in Canada: Agriculture & Agri-Food Canada
Office of Intellectual Property and Commercialization
107 Science Place
Saskatoon, Saskatchewan
S7N 0X2
Tel: (306) 385-9316
Application Date: 2014-05-12
Application Number: 14-8317
Grant of Rights Date: 2018-08-16
Certificate Number: 5796
Grant of Rights Termination Date: 2038-08-16

Variety Description

Varieties used for comparison: 'AAC Mandor' and 'OAC Petrel'

Summary: The hairs on the main stem of 'AAC Edward' are tawny whereas they are gray on 'AAC Mandor'. The plants of 'AAC Edward' are shorter than those of 'OAC Petrel'. The intensity of brown colour of the pods of 'AAC Edward' is medium whereas it is weak for 'AAC Mandor'. The plants of 'AAC Edward' are earlier maturing than those of both reference varieties.


PLANT: indeterminate growth type, tawny pubescence on middle third of main stem, flowers and matures early in the season

HYPOCOTYL: anthocyanin colouration present

LEAF: pointed ovate shape of lateral leaflet

FLOWER: violet

POD: medium brown
SEED: yellow ground colour of testa
HILUM: yellow

Origin & Breeding History: 'AAC Edward' originated from the cross OT99-13 / OT02-18 / 2 / 90A01, conducted in 2003 at the Agriculture & Agri-Food Canada, Ottawa Research and Development Centre, Ottawa, Ontario. The F2 population was grown in Ottawa in 2004 and was advanced using the pedigree selection method. In 2007, selected F5 rows were grown in the field and bulked for further evaluation. 'AAC Edward' was tested as OT11-01 in Ottawa in 2008 and tested at multiple locations since 2009. Selection criteria included early maturity and agronomic characteristics.

Tests & Trials: The comparative trials for 'AAC Edward' were conducted in 2015 and 2016 at the Agriculture & Agri-Food Canada, Ottawa Research and Development Centre, Ottawa, Ontario. The trials consisted of four replicates per variety with four rows per replication. Plots were approximately 1.6 by 5 metres and were arranged in a randomized complete block design. Mean differences were significant at the 5% probability level based on LSD values.

Comparison tables for 'AAC Edward' with reference varieties 'AAC Mandor' and 'OAC Petrel'

Plant height (cm)

  'AAC Edward' 'AAC Mandor' 'OAC Petrel'
mean 2015 (LSD=6.2) 40.0 41.3 52.5
std. devation 2015 4.1 6.3 6.5
mean 2016 (LSD=11.0) 68.8 82.5 81.9
std. deviation 2016 4.8 8.4 5.5

Days to maturity

  'AAC Edward' 'AAC Mandor' 'OAC Petrel'
mean 2015 102 105 110
mean 2016 109 116 116

Click on image for larger view
AAC Edward
Soybean: 'AAC Edward' (left) with 'AAC Mandor' (centre) and 'OAC Petrel' (right)

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