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Denomination: '91Y41'
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 LP
379 Springbank Ave.
P.O. Box 23040
Woodstock, Ontario
N4T 1R9
Tel: 519-533-5151
Application Date: 2011-02-24
Application Number: 11-7196
Grant of Rights Date: 2015-05-04
Certificate Number: 5133
Date rights surrendered: 2016-05-04

Variety Description

Varieties used for comparison: '91M01', 'PRO2935R2C' and RJS15003'

Summary: '91Y41' flowers later than '91M01' and 'RJS15003'. The plants of '91Y41' have brown (tawny) pubescence whereas those of 'RJS15003' have light tawny. The plants of '91Y41' are shorter than those of 'PRO2935R2C'. The hilum of '91Y41' is dark brown whereas it is black on 'PRO2935R2C'. '91Y41' matures later than '91M01' and earlier than 'RJS15003'.


HYPOCOTYL: strong intensity of anthocyanin colouration

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

LEAF: medium green colour, pointed ovate lateral leaflet

FLOWER: purple

POD: brown
SEED: spherical flattened shape, dull lustre, yellow ground colour of testa, 15.3 grams per 100 seed at 13-15 % moisture
HILUM: dark brown, normal abscission layer

AGRONOMICS: 2875 heat unit rating

QUALITY CHARACTERISTICS: 40.7 % protein, 19.9 % oil

Origin & Breeding History: '91Y41' (experimental designations XB14Y10, PH10103) is the result of the cross between 'XB26P05' and '91M60' made in 2003 in Iowa, USA. F1 plants were grown out in Puerto Rico during the winter of 2003/04. The modified single seed descent method and pedigree method were used to develop the variety. The F2-F4 generations were grown in Puerto Rico, Minnesota and Chile. The F5 generation onward were grown in Canada and advanced based on yield for single plants and progeny rows. Single plant purification occurred in 2008. Wide area testing continued from 2008-2010 in the USA and Canada. Selection criteria included yield, maturity and resistance to Roundup branded herbicides.

Tests & Trials: Test and trials for '91Y41' were conducted in Goderich (Clinton), 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 201000561, purchased from the Plant Variety Protection Office, Beltsville, Maryland, USA.

Comparison tables for '91Y41' with reference varieties '91M01', 'PRO2935R2C' and RJS15003'

Days to flowering

  '91Y41' '91M01' 'PRO2935R2C' RJS15003'
mean 55 53 55 57

Plant height (cm)

  '91Y41' '91M01' 'PRO2935R2C' RJS15003'
mean 66.8 69.3 74.4 66.0
std. deviation 3.35 4.64 4.01 3.34

Days to maturity

  '91Y41' '91M01' 'PRO2935R2C' RJS15003'
mean 112.0 109.3 112.7 116.0

Protein content (%)

  '91Y41' '91M01' 'PRO2935R2C' RJS15003'
mean 40.7 43.4 42.3 41.9

Click on image for larger view
Soybean: '91Y41' (centre left) with reference varieties '91M01' (left), 'PRO2935R2C' (centre right) and 'RJS15003' (right)

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