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OAC Prescott


Denomination: 'OAC Prescott'
Previously Proposed Denomination: 'SeCan10-24C'
Botanical Name: Glycine max
Applicant/Holder: University of Guelph
Research Innovation Office
Building #92, 50 Stone Road East
Guelph, Ontario
N1G 2W1
Breeder: Istvan Rajcan, University of Guelph, Guelph, Ontario
Application Date: 2013-07-12
Application Number: 13-8085
Grant of Rights Date: 2020-02-24
Certificate Number: 6151
Grant of Rights Termination Date: 2040-02-24

Variety Description

Varieties used for comparison: 'OAC Lakeview', 'OAC Drayton' and 'OAC Durham'

Summary: The intensity of anthocyanin colouration on the hypocotyl of 'OAC Prescott' is of medium intensity whereas it is very weak for 'OAC Durham', strong for 'OAC Lakeview' and very strong for 'OAC Drayton'. The hairs on the middle third of the main stem of 'OAC Prescott' are grey whereas they are tawny on 'OAC Drayton'. The flower colour of 'OAC Prescott' is violet whereas it is white for 'OAC Durham'. The colour of the hilum on 'OAC Prescott' is grey whereas it is dark brown on 'OAC Drayton' and it is yellow for 'OAC Lakeview' and 'OAC Durham'. The hilum funicle is the same colour as the testa on 'OAC Prescott' whereas it is a different colour from the testa on 'OAC Lakeview'. The plants of 'OAC Prescott' are earlier maturing than those of 'OAC Drayton' and 'OAC Durham'.


PLANT: oilseed type, indeterminate growth type, erect branch attitude, grey pubescence on middle third of main stem, begins flowering and matures early in season

HYPOCOTYL: medium intensity of anthocyanin colouration

LEAF: medium blistering, medium to dark green
TERMINAL LEAFLET: ovoid shape, large
LATERAL LEAFLET: pointed ovate, large

FLOWER: violet

POD: medium to dark brown
SEED: large, elongated, yellow ground colour of testa, weak glaucosity, opaque to intermediate glossiness of testa
HILUM: grey
FUNICLE: same colour as the testa

Origin & Breeding History: 'OAC Prescott' (experimental designation SeCan 12-24C) originated from the cross between 'OAC Lakeview' and 'SD00-167' conducted in 2005 at the University of Guelph in Guelph, Ontario. The crossed material was derived by Single Seed descent technique until the F4 generation when a single plant was selected for maturity and agronomic traits in 2006. Seed from this plant was harvested and maintained by pedigree selection until the F4:7 generation when 25 plants were selected for morphological uniformity in 2009. The line, designated as SeCan 12-24C, was tested in the 2600 Heat Unit Private Ontario Soybean Variety Trials in 2010 and the 2600 Heat Unit Public Ontario Soybean Variety Trials in 2011 and 2012. Additional selection criteria included yield, agronomic traits, disease resistance and seed quality traits.

Tests & Trials: The comparative trials for 'OAC Prescott' were conducted during the 2016 and 2018 growing seasons at the Elora Research Station of the University of Guelph, in Elora, Ontario. The trial was arranged in a RCB design and consisted of four replicates per variety in 2016 and three replicates per variety in 2018. Plots were approximately 1.5 by 5 metres with four rows spaced 43 centimetres apart. Measurements were taken from 20 plants or parts of 20 plants of each variety except for the 100 seed weight with 8 samples taken in 2016 and 5 samples taken in 2018 for each variety.

Comparison table for 'OAC Prescott' with reference varieties 'OAC Lakeview', 'OAC Drayton' and 'OAC Durham'

Days to maturity

  'OAC Prescott' 'OAC Lakeview' 'OAC Drayton' 'OAC Durham'
mean 2016 119 115 124 121
mean 2018 117 117 121 119

Click on image for larger view
OAC Prescott
Soybean: 'OAC Prescott' (left) with reference varieties 'OAC Lakeview' (centre left), 'OAC Drayton' (centre right) and 'OAC Durham' (right)

Click on image for larger view
OAC Prescott
Soybean: 'OAC Prescott' (left) with reference varieties 'OAC Lakeview' (centre left), 'OAC Drayton' (centre right) and 'OAC Durham' (right)

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