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AAC Springfield

Soybean

Denomination: 'AAC Springfield'
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
Canada
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
Canada
Tel: (306) 385-9316
Application Date: 2016-05-09
Provisional Protection:: 2016-05-09
Application Number: 16-8920
Grant of Rights Date: 2018-08-16
Certificate Number: 5799
Grant of Rights Termination Date: 2038-08-16

Variety Description

Varieties used for comparison: 'AAC Edward' and 'AAC Halli'

Summary: The hairs on the main stem of 'AAC Springfield' are grey whereas they are tawny on 'AAC Edward'. The plants of 'AAC Springfield' are shorter than those of 'AAC Halli'. The intensity of brown colour of the pods of 'AAC Springfield' is light whereas it is medium for 'AAC Edward'.

Description:

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

HYPOCOTYL: anthocyanin colouration present

LEAF: pointed ovate shape of lateral leaflet

FLOWER: violet

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

Origin & Breeding History: 'AAC Springfield' originated from the cross OT05-19 // 'AC Albatros' / 'Harovinton' conducted in 2005 at the Agriculture & Agri-Food Canada, Ottawa Research and Development Centre, Ottawa, Ontario. The F2 population was grown in Ottawa in 2005 and was advanced using the pedigree selection method. In 2009, selected F5 rows were grown in the field and bulked for further evaluation. 'AAC Springfield' was tested as OT13-05 in Ottawa in 2010 and tested at multiple locations since 2011. Selection criteria included high protein, adaptation and agronomic characteristics.

Tests & Trials: The comparative trials for 'AAC Springfield' 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. The height data was based on data taken from 5 years of trials conducted at the Ottawa Research and Development Centre. Mean differences were significant at the 5% probability level based on a paired Student's T-test.


Comparison table for 'AAC Springfield' with reference varieties 'AAC Edward' and 'AAC Halli'

Plant height (cm)

  'AAC Springfield' 'AAC Edward' 'AAC Halli'
mean 64.6 n/a 69.8

Click on image for larger view
AAC Springfield
Soybean: 'AAC Springfield' (left) with reference variety 'AAC Edward' (right)

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