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Denomination: '93Y22'
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 LP
379 Springbank Ave.
P.O. Box 23040
Woodstock, Ontario
N4T 1R9
Tel: 519-533-5151
Application Date: 2011-03-09
Application Number: 11-7216
Grant of Rights Date: 2014-02-10
Certificate Number: 4712
Date rights revoked: 2016-02-10

Variety Description

Varieties used for comparison: '92M74' and 'RJS30006'

Summary: '93Y22' flowers later than '92M74'. When 50 percent of the pods are ripe, '93Y22' is shorter than the reference varieties. The 100 seed weight of '93Y22' is less than that of 'RJS30006'. '93Y22' matures later than '92M74'.


HYPOCOTYL: absent 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: white

POD: brown
SEED: spherical flattened shape, dull lustre, yellow ground colour of testa, 16.3 grams per 100 seed at 13-15 % moisture
HILUM: dark brown, normal abscission layer

AGRONOMICS: 3325 heat unit rating, fair to good resistance to lodging

QUALITY CHARACTERISTICS: 39.9 % protein, 20.9 % oil

Origin & Breeding History: '93Y22' (experimental designations XB31G10, PH10304) is the result of a cross made in 2005 between 'ZB28S05' and '93M11' in Illinois, USA. The modified single seed descent method and pedigree method were used to develop the variety. The F3-F4 generations were grown in Chile and Illinois and advanced based on yield for single plants and progeny rows. Single plant purification occurred in 2007/2008 in Chile. Wide area testing continued from 2008-2010 in the USA. Selection criteria included yield, maturity, resistance to Roundup branded herbicides, to Phytophthora megasperma, Soybean Cyst Nematodes 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 201000474, purchased from the Plant Variety Protection Office, Beltsville, Maryland, USA.

Comparison tables for '93Y22' with reference varieties '92M74' and 'RJS30006'

Days to flowering

  '93Y22' '92M74' 'RJS30006'
mean 49 47 49

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

  '93Y22' '92M74' 'RJS30006'
mean (LSD=3.59) 103.9 108.7 111.0
std. deviation 6.60 4.58 4.37

100 seed weight (at 13-15% moisture)(grams)

  '93Y22' '92M74' 'RJS30006'
mean 16.3 18.2 20.7

Days to maturity

  '93Y22' '92M74' 'RJS30006'
mean 126 123 126

Click on image for larger view
Soybean: '93Y22' (centre) with reference varieties '92M74' (left) and 'RJS30006' (right)

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