|Botanical Name:||Glycine max|
Pioneer Hi-Bred International, Inc.
8305 NW 62nd Avenue
P.O. Box 7060
United States of America
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
Tel: 403-345-3305; X 6609
|Grant of Rights Date:||2016-07-07|
|Grant of Rights Termination Date:||2036-07-07|
Varieties used for comparison: 'P19T60R' and 'CF52GR'
Summary: The pubescence on the middle third of the stem of 'P22T69R' is light tawny whereas it is grey on 'CF52GR'. When 50% of the pods are ripe, the plants of 'P22T69R' are shorter than those of the reference varieties. The seed shape of 'P22T69R' is spherical flattened whereas it is spherical for 'CF52GR'. The hilum colour of 'P22T69R' is black whereas it is imperfect black on 'CF52GR'. 'P22T69R' is later maturing than 'CF52GR'.
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 to late season
HYPOCOTYL: strong intensity of anthocyanin colouration
LEAF: pointed ovate lateral leaflet
POD: medium to dark brown colour
SEED: spherical flattened shape, yellow ground colour of testa, 17.4 grams per 100 seed at 13-15 % moisture
HILUM: black, yellow funicle
AGRONOMICS: 3075 heat unit rating
QUALITY CHARACTERISTICS: 39.5 % protein, 23.7 % oil
Origin & Breeding History: 'P22T69R' (experimental designations 'XB22K12' and 'PH12201') is the result of the cross between '93M11' and '92M21' conducted in 2004 in Waimea, Hawaii, USA. 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 in Redwood Falls, Minnesota, USA. The F4 generation grown in Viluco, Chile and the F5-F6 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 'P22T69R' conducted in Chatham, 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 201200194, purchased from the Plant Variety Protection Office, Beltsville, Maryland, USA.
Comparison tables for 'P22T69R' with reference varieties 'P19T60R' and 'CF52GR'
Plant height (cm)
Maturity Date (days)
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