P15T83R

Soybean

Denomination: 'P15T83R'
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: Jessie Alt, Pioneer Hi-Bred International, Inc., Dallas Center, 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: 2014-02-19
Application Number: 14-8217

Variety Description

Varieties used for comparison: 'XB17R12' and 'S15-B4'

Summary: When 95% of the pods are ripe, the middle third of the stem of 'P15T83R' has light tawny pubescence while that 'S15-B4' has tawny pubescence. The plants of 'P15T83R' are shorter than those of both reference varieties. The pod of 'P15T83R' is light to medium brown while that of 'S15-B4' is medium to dark brown.

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 mid-season

HYPOCOTYL: no anthocyanin colouration

LEAF: pointed ovate lateral leaflet, medium sized lateral leaflet

FLOWER: white

POD: light to medium brown colour
SEED: medium to large, spherical flattened shape, yellow ground colour of testa
HILUM: dark brown, normal abscission layer, yellow funicle

Origin & Breeding History: 'P15T83R' (experimental designation XB15Z13) is the result of the cross between '93M13' and 'XB12K05' conducted in 2005 in the summer near Chatham, Ontario, Canada. The modified single seed descent method and pedigree method were used to develop the variety. The F1-F2 generations were grown in Waimea, Hawaii and the F3 generation was grown near Chatham, Ontario, Canada. In 2006, the F4 generation was grown in Viluco, Chile and were advanced based on yield for single plants and progeny rows. Single plant purification took place in 2009 in Waimea, Hawaii. Wide area testing continued from 2010-2013 in the USA and Canada. Selection criteria included yield, maturity and resistance to Roundup branded herbicides, Phytophthora rot (Phytophthora sojae) and Soybean cyst nematode (Heterodera glycines).

Tests & Trials: The comparative trial for 'P15T83R' conducted in Thamesford, 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 275 seeds per replication. For each variety, the plant height was based on 30 measurements. Mean differences were significant at the 5% probability level based on LSD values. Results were supported by the official technical examination report 201300216, purchased from the Plant Variety Protection Office, Beltsville, Maryland, USA.


Comparison table for 'P15T83R' with reference varieties 'XB17R12' and 'S15-B4'

Plant height (cm)

  'P15T83R' 'XB17R12' 'S15-B4'
mean (LSD=1.78) 92.20 95.93 95.76
std. deviation 4.29 4.08 3.98

Click on image for larger view
P15T83R
Soybean: 'P15T83R' (centre) with reference varieties 'XB17R12' (left) and 'S15-B4' (right)

Click on image for larger view
P15T83R
Soybean: 'P15T83R' (centre) with reference varieties 'XB17R12' (left) and 'S15-B4' (right)

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