Denomination: 'P01T23R'
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 Co.
c/o DuPont Pioneer Research
RR # 8 , Site 32, Comp # 14
Lethbridge County, Alberta
T1J 4P4
Tel: 403-345-3305; X 6609
Application Date: 2013-03-13
Application Number: 13-7969

Variety Description

Varieties used for comparison: '900Y81' and '25-10RY'

Summary: When 50% of the pods are ripe, the plants of 'P01T23R' are shorter than both reference varieties. 'P01T23R' has a small to medium sized seed whereas the reference varieties have a medium to large seed. The 100 seed weight of 'P01T23R' is less than that of both reference varieties. The colour of the hilum on 'P01T23R' is dark brown whereas it is black on '25-10RY'.


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

HYPOCOTYL: strong intensity of anthocyanin colouration

LEAF: pointed ovate lateral leaflet, medium sized lateral leaflet, medium green

FLOWER: violet

POD: medium brown
SEED: small to medium size, spherical flattened shape, yellow ground colour of testa
HILUM: dark brown, yellow funicle

Origin & Breeding History: 'P01T23R' (experimental designations XB00N12, PH12008) is the result of the cross between 'EX01F04' and '90M60' conducted in winter 2004/2005 in Salinas, Puerto Rico. The modified single seed descent method and pedigree method were used to develop the variety. The F1 generation was grown in Salinas, Puerto Rico, whereas the F2-F3 generations were grown in Waimea, Hawaii, USA. In 2006, the F4 generation grown in Chatham, Canada, and the F5 generation grown in Viluco, Chile, were advanced based on yield for single plants and progeny rows. Single plant purification took place in 2009 in Moorhead, Minnesota. Wide area testing continued from 2010-2012 in the USA and Canada. Selection criteria included yield, maturity and resistance to Roundup branded herbicides and to Phytophthora rot (Phytophthora megasperma f. sp. glycinea).

Tests & Trials: The comparative trial for 'P01T23R' conducted in Alma, Ontario during the 2014 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 180 to 250 plants per replication. For each variety, the plant height was based on 30 measurements whereas the seed weight was based on 2 measurements. Mean differences were significant at the 5% probability level based on LSD values. Results were supported by the official technical examination report 201200178, purchased from the Plant Variety Protection Office, Beltsville, Maryland, USA.

Comparison tables for 'P01T23R' with reference varieties '900Y81' and '25-10RY'

Plant height (cm)

  'P01T23R' '900Y81' '25-10RY'
mean (LSD=1.44) 63.8 70.8 74.9
std. deviation 5.9 5.7 6.0

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

  'P01T23R' '900Y81' '25-10RY'
mean (LSD=2.95) 18.0 21.9 21.5

Click on image for larger view
Soybean: 'P01T23R' (centre) with reference varieties '900Y81' (left) and '25-10RY' (right)

Click on image for larger view
Soybean: 'P01T23R' (centre) with reference varieties '25-10RY' (left) and '900Y81' (right)

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