|Botanical Name:||Glycine max|
Pioneer Hi-Bred International, Inc.
8305 NW 62nd Avenue
P.O. Box 7060
United States of America
Don Kyle, Pioneer Hi-Bred International, Inc., Princeton, United States of America
|Agent in Canada:||
Pioneer Hi-Bred Production Co.
c/o DuPont Pioneer Research
RR # 8 , Site 32, Comp # 14
Lethbridge County, Alberta
Tel: 403-345-3305; X 6609
|Grant of Rights Date:||2015-06-26|
|Grant of Rights Termination Date:||2035-06-26|
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
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)
Maturity Date (days)
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