AAC Springfield
| 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 c/o Shannon Whyte 107 Science Place Saskatoon, Saskatchewan S7N 0X2 Canada Tel: (204) 999-9887 |
| 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
Soybean: 'AAC Springfield' (left) with reference variety 'AAC Edward' (right)
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