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Denomination: '92Y12'
Botanical Name: Glycine max
Applicant/Holder: Pioneer Hi-Bred International, Inc.
8305 NW 62nd Avenue
P.O. Box 7060
Johnston, Iowa
United States of America
Breeder: John Van Herk, Pioneer Hi-Bred Production LP, Woodstock, Ontario
Agent in Canada: Pioneer Hi-Bred Production Co.
24th Floor, 215 2nd Street SW
Calgary, Alberta
T2P 1M4
Tel: 403-440-2988
Application Date: 2011-02-24
Application Number: 11-7194
Grant of Rights Date: 2014-02-10
Certificate Number: 4709
Date rights surrendered: 2018-02-10

Variety Description

Varieties used for comparison: '92B38' and 'RR2 Gold'

Summary: The hypocotyl of '92Y12' has a medium intensity of anthocyanin colouration while it is a strong intensity for '92B38' and 'RR2 Gold'. '92Y12' flowers later than 'RR2 Gold'. When 50 percent of the pods are ripe, '92Y12' is shorter than '92B38'. '92Y12' has a tan pod colour while it is brown for '92B38'. The seed of '92Y12' is elongate shape while it is spherical flattened for the reference varieties. '92Y12' has a black hilum while it is dark brown for '92B38'. '92Y12' matures later than 'RR2 Gold'.


HYPOCOTYL: medium intensity of anthocyanin colouration

PLANT: oilseed type, indeterminate growth type, erect to semi-erect growth habit, light tawny pubescence

LEAF: medium green colour, pointed ovate lateral leaflet

FLOWER: violet

POD: tan
SEED: elongate shape, dull lustre, yellow ground colour of testa, 18.7 grams per 100 seed at 13-15 % moisture
HILUM: black, normal abscission layer

AGRONOMICS: 3050 heat unit rating, fair to good resistance to lodging

QUALITY CHARACTERISTICS: 41.0 % protein, 19.9 % oil

Origin & Breeding History: '92Y12' (experimental designations XB21D10, PH10201) is the result of a cross made in 2003/2004 between '92M72' and '92M51' in Chile. The modified single seed descent method and pedigree method were used to develop the variety. The F1 was grown in Canada. The F2-F3 generations were grown in Hawaii and advanced based on yield for single plants and then progeny row tests. The F4-F5 generations were grown in Canada in 2005 and 2006 with a contra season nursery in Chile in 2005/2006. Single plant purification occurred in 2007 in Canada. Wide area testing continued in the USA and Canada from 2008-2010. Selection criteria included yield, maturity, resistance to Roundup branded herbicides, to Phytophthora megasperma and Brown Stem rot.

Tests & Trials: Test and trials were conducted in Wallaceburg, Ontario during the 2011 growing season. Plots consisted of 2 rows with a row length of 4 meters and a row spacing of 76 cm. There were 3 replicates. Results were supported by the official technical examination report 201000555, purchased from the Plant Variety Protection Office, Beltsville, Maryland, USA.

Comparison tables for '92Y12' with reference varieties '92B38' and 'RR2 Gold'

Days to flowering

  '92Y12' '92B38' 'RR2 Gold'
mean 43 44 37

Plant height (when 50 percent of pods are ripe) (cm)

  '92Y12' '92B38' 'RR2 Gold'
mean 100.1 110.2 99.8
std. deviation 5.19 5.56 4.69

Days to maturity

  '92Y12' '92B38' 'RR2 Gold'
mean 118 118 111

Click on image for larger view
Soybean: '92Y12' (centre) with reference varieties '92B38' (left) and 'RR2 Gold' (right)

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