P10T91R

Soybean

Denomination: 'P10T91R'
Botanical Name: Glycine max
Applicant/Holder: Pioneer Hi-Bred International, Inc.
8305 NW 62nd Avenue
P.O. Box 7060
Johnston, Iowa
50131
United States of America
Breeder: Martin Fabrizius, Pioneer Hi-Bred International, Inc., Redwood Falls, 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
T1J 4P4
Canada
Tel: 403-345-3305; X 6609
Application Date: 2013-03-13
Application Number: 13-7971
Grant of Rights Date: 2016-04-25
Certificate Number: 5249
Grant of Rights Termination Date: 2036-04-25

Variety Description

Varieties used for comparison: '90Y90' and 'Absolute RR'

Summary: The pubescence on the middle third of the stem of 'P10T91R' is light tawny whereas it is tawny on 'Absolute RR'. When 50% of the pods are ripe, the plants of 'P10T91R' are taller than those of '90Y90'. The seed shape of 'P10T91R' is elongate whereas it is spherical flattened for the reference varieties. The hilum colour of 'P10T91R' is dark brown whereas it is black on 'Absolute RR'. 'P10T91R' is later maturing than 'Absolute RR'.

Description:

PLANT: oilseed type, indeterminate growth type, erect to semi-erect growth habit, light tawny pubescence on middle third of main stem, flowers and matures early to mid season

HYPOCOTYL: strong intensity of anthocyanin colouration

LEAF: pointed ovate lateral leaflet

FLOWER: violet

POD: medium to dark brown colour
SEED: elongate, yellow ground colour of testa, 20.7 grams per 100 seed at 13-15 % moisture
HILUM: dark brown, yellow funicle

AGRONOMICS: 2775 heat unit rating

QUALITY CHARACTERISTICS: 39.0 % protein, 21.1 % oil

Origin & Breeding History: 'P10T91R' (experimental designations 'XB10A12' and 'PH12101') is the result of the cross between '90M60' and '91M80' conducted in 2005 in Redwood Falls, Minnesota, USA. The modified single seed descent method and pedigree method were used to develop the variety. The F1-F2 generations were grown in Salinas, Puerto Rico and the F3 generation was grown in Redwood Falls, Minnesota. The F4 generation grown in Viluco, Chili and the F5-F7 generations grown in Redwood Falls, Minnesota were advanced based on yield for single plants and progeny rows. Single plant purification took place in 2009 in Redwood Falls, Minnesota. Wide area testing continued from 2010-2012 in the USA and Canada. Selection criteria included yield, maturity and resistance to Roundup branded herbicides, to Phytophthora rot (Phytophthora megasperma f. sp. glycinea) and soybean cyst nematodes (Heterodera glycines).

Tests & Trials: The comparative trial for 'P10T91R' conducted in Sebringville, Ontario during the 2013 growing season was planted in a RCB design and consisted of 3 replicates for each variety. Plots consisted of 2 rows 4 metres in length and a row spacing of 76 cm. Each plot was sown with 300 seeds per replication. For each variety, the plant height was based on 30 measurements whereas the seed weight was based on 3 measurements. Mean differences were significant at the 5% probability level based on LSD values. Results were supported by the official technical examination report 201200184, purchased from the Plant Variety Protection Office, Beltsville, Maryland, USA.


Comparison tables for 'P10T91R' with reference varieties '90Y90' and 'Absolute RR'

Plant height (cm)

  'P10T91R' '90Y90' 'Absolute RR'
mean (LSD=2.03) 71.0 66.9 70.4
std. deviation 4.6 5.1 4.6

Maturity Date(days)

  'P10T91R' '90Y90' 'Absolute RR'
mean 115.3 114.7 112.3

Click on image for larger view
P10T91R
Soybean: 'P10T91R' (center) with reference varieties '90Y90' (left) and 'Absolute RR' (right)

Click on image for larger view
P10T91R
Soybean: 'P10T91R' (bottom) with reference varieties '90Y90' (top left) and 'Absolute RR' (top right)

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