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Denomination: '92Y83'
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: Don Kyle, Pioneer Hi-Bred International, Inc., Princeton, United States of America
Agent in Canada: Pioneer Hi-Bred Production Co.
24th Floor, 215 2nd Street SW
Calgary, Alberta
T2P 1M4
Tel: 403-440-2988
Application Date: 2012-01-26
Application Number: 12-7489
Grant of Rights Date: 2015-06-26
Certificate Number: 5053
Date rights surrendered: 2019-06-26

Variety Description

Varieties used for comparison: 'ThesanR2' and '92Y55'

Summary: '92Y83’ flowers earlier than '92Y55’. The plants of '92Y55’ have a light tawny pubescence whereas those of 'ThesanR2’ have a grey pubescence. '92Y83’ has a tan pod colour whereas it is brown for the reference varieties. The seed shape of '92Y83’ is spherical flattened whereas it is elongate for '92Y55’. The hilum of '92Y83’ is black whereas it is light brown for 'ThesanR2’. '92Y83’ matures later than '92Y55’.


PLANT: oilseed type, indeterminate growth type, erect to semi-erect growth habit, light tawny pubescence on middle third of main stem

HYPOCOTYL: anthocyanin colouration absent

LEAF: medium green colour, pointed ovate lateral leaflet

FLOWER: white

POD: tan
SEED: spherical flattened shape, dull lustre, yellow ground colour of testa, 16.6 grams per 100 seed at 13 % moisture
HILUM: black, medium sized, normal abscission layer

AGRONOMICS: 3225 heat unit rating

QUALITY CHARACTERISTICS: 41.2 % protein, 22.3 % oil

Origin & Breeding History: '92Y83’ (experimental designations XB28AD11, PH11207) is the result of a cross made in 2004 between 'XB27B05’ and '93M11’ in Illinois, USA. The modified single seed descent method and pedigree method were used to develop the variety. The F1-F2 generations were grown in Puerto Rico. The F3 was grown in Illinois and the F4 in Chili. The F5 generation onward were grown in Illinois and advanced based on yield for single plants and progeny rows. Single plant purification occurred in 2008 in Illinois. Wide area testing continued from 2009-2011 in the USA and Canada. Selection criteria included yield, maturity and resistance to Roundup branded herbicides, to Phytophthora rot (Phytophthora megasperma f. sp. glycinea), to soybean cyst nematode (Heterodera glycines) and Frogeye leaf spot (Cercospora sojina).

Tests & Trials: Test and trials for '92Y83’ were conducted in Ridgetown, Ontario during the 2012 growing season. Plots consisted of 2 rows with a row length of 4 metres and a row spacing of 76 cm. Each plot was sown with approximately 225 seeds. There were 3 replications per variety arranged in a RCB design. Results were supported by the official technical examination report 201100188, purchased from the Plant Variety Protection Office, Beltsville, Maryland, USA.

Comparison tables for '92Y83' with reference varieties 'ThesanR2' and '92Y55'

Flowering Date (days)

  '92Y83' 'ThesanR2' '92Y55'
mean 61 62 64

Maturity Date (days)

  '92Y83' 'ThesanR2' '92Y55'
mean 123 121 120

Click on image for larger view
Soybean: '92Y83' (center) with reference varieties '92Y55' (left) and 'Thesan R2' (right)

Click on image for larger view
Soybean: '92Y83' (bottom) with reference varieties 'Thesan R2' (top left) and '92Y55' (top right)

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