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Denomination: '90Y21'
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: Nadia Krasheninnik, Pioneer Hi-Bred International, Inc., Moorhead, 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: 2011-02-24
Application Number: 11-7198
Grant of Rights Date: 2013-12-23
Certificate Number: 4685
Date rights surrendered: 2015-12-23

Variety Description

Varieties used for comparison: '90M01', '90Y30' and '26-10RY'

Summary: '90Y21' flowers earlier than '90M01' and '26-10RY'. The hairs on the middle of the stem of '90Y21' are grey while they are tawny for '90Y30'. When 50% of the pods are ripe, '90Y21' has a shorter plant height than '26-10RY'. The seed shape of '90Y21' is elongate while it is spherical rounded for '90Y30' and spherical flattened for '90M01' and '26-10RY'. '90Y21' has a yellow hilum while the hilum is imperfect yellow for '90Y30' and grey for '26-10RY'. '90Y21' matures earlier than '26-10RY' but later than '90Y30'.


HYPOCOTYL: strong intensity of anthocyanin colouration

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

LEAF: medium green colour, pointed ovate lateral leaflet

FLOWER: violet

POD: brown
SEED: elongate shape, dull lustre, yellow ground colour of testa, 19.7 grams per 100 seed at 13-15 % moisture
HILUM: yellow, normal abscission layer

AGRONOMICS: 2575 heat unit rating

QUALITY CHARACTERISTICS: 41.0 % protein, 21.6 % oil

Origin & Breeding History: '90Y21' (experimental designations XB02U10, PH10005) is the result of a cross made in 2003/2004 between 'YB01D05' and '90M01' in Chile. 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 generation was grown in Chile. The F3:4 generation onward was grown in Minnesota 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 and Canada. Selection criteria included yield, maturity, resistance to Roundup branded herbicides and to Phytophthora megasperma and Iron Chlorosis on calcareous soils.

Tests & Trials: Test and trials were conducted in Monkton, 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 201000567, purchased from the Plant Variety Protection Office, Beltsville, Maryland, USA.

Comparison tables for '90Y21' with reference varieties '90M01', '90Y30' and '26-10RY'

Days to flowering

  '90Y21' '90M01' '90Y30' '26-10RY'
mean 62 64 61 67

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

  '90Y21' '90M01' '90Y30' '26-10RY'
mean 58.2 56.9 58.7 63.8
std. deviation 4.62 2.54 5.89 5.43

Days to maturity

  '90Y21' '90M01' '90Y30' '26-10RY'
mean 116 117 114 122

Click on image for larger view
Soybean: '90Y21' (centre left) with reference varieties '90M01' (far left), '90Y30' (centre right) and '26-10RY' (far right)

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