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Denomination: 'P09T74R2'
Botanical Name: Glycine max
Applicant/Holder: Monsanto Technology, LLC
800 North Lindbergh Boulevard
St. Louis, Missouri
United States of America
Breeder: Roger Lussenden, Monsanto Soybean Research, Redwood Falls, United States of America
Agent in Canada: Pioneer Hi-Bred Production Co.
c/o Dupont Pioneer Research
91058 Range Road 20-4
Lethbridge County, Alberta
T1J 5P2
Tel: 403-345-3305; X 6609
Application Date: 2015-03-31
Provisional Protection:: 2015-03-31
Application Number: 15-8557
Grant of Rights Date: 2018-09-07
Certificate Number: 5809
Date rights revoked: 2020-09-07

Variety Description

Varieties used for comparison: 'DK27-60RY' and '90Y90'

Summary: The plants of 'P09T74R2' are shorter than those of 'DK27-60RY'. The pods of 'P09T74R2' are light brown whereas they are medium brown for both reference varieties. The hilum colour of 'P09T74R2' is black whereas it is medium brown for '90Y90'.


PLANT: indeterminate growth type, light tawny pubescence on middle third of main stem, flowers and matures early in the season

HYPOCOTYL: anthocyanin colouration present

LEAF: pointed ovate shape of lateral leaflet

FLOWER: violet

POD: light brown
SEED: yellow ground colour of testa
HILUM: black

Origin & Breeding History: 'P09T74R2' (experimental designation PH14015) is the result of the cross between 'MK0908A1-D0YN' and 'RM1909B3-D0YN' conducted in the summer of 2009 near 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 Kunia, Hawaii and the F3 generation was grown again near Redwood Falls, Minnesota, USA. In 2010, the F4 generation was grown in Rancagua, Chile and was advanced based on yield for single plants and progeny rows. Wide area testing continued from 2011 to 2013 at various locations throughout the USA and Canada. Selection criteria included yield, standability and tolerance to Roundup branded herbicides, Phytophthora rot (Phytophthora sojae) and Soybean cyst nematode (Heterodera glycines).

Tests & Trials: The comparative trials for 'P09T74R2' were conducted in Monkton and Sweaburg, Ontario during the 2015 and 2016 growing seasons, were planted in a RCB design and consisted of 3 replicates for each variety. Plots consisted of 2 rows per replicate that were 4.5 metres in length with a row spacing of 76 cm. For each variety, the plant height was based on 30 measurements. Mean differences were significant at the 5% probability level based on a Paired student's T-test.

Comparison table for 'P09T74R2' with reference varieties 'DK27-60RY' and '90Y90'

Plant height (cm)

  'P09T74R2' 'DK27-60RY' '90Y90'
mean 2015 73.3 79.5 71.0
std. deviation 2015 4.6 3.3 6.1
mean 2016 70.5 84.1 68.7
std. deviation 2016 3.7 3.3 2.5

Click on image for larger view
Soybean: 'P09T74R2' (centre) with reference varieties '90Y90' (left) and 'DK27-60RY' (right)

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