|Botanical Name:||Glycine max|
Monsanto Technology, LLC
800 North Lindbergh Boulevard
St. Louis, Missouri
United States of America
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
Tel: 403-345-3305; X 6609
|Grant of Rights Date:||2018-09-07|
|Date rights revoked:||2020-09-07|
Varieties used for comparison: 'P16T04R' and 'DK29-60RY'
Summary: The hairs on the main stem of 'P15T46R2' are grey whereas they are light tawny for 'P16T04R'. The pods of 'P15T46R2' are medium brown whereas they are light brown for both reference varieties. The 100 seed weight of 'P15T46R2' is lighter than that of 'P16T04R'. The hilum colour of 'P15T46R2' is imperfect black whereas it is medium brown for 'P16T04R'.
PLANT: indeterminate growth type, grey 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
POD: medium brown
SEED: yellow ground colour of testa
HILUM: imperfect black
Origin & Breeding History: 'P15T46R2' (experimental designation PH14108) is the result of the cross between 'EV1709B3-D0YN' and 'RM1609A7-D0YN' conducted in the winter of 2008 in Isabela, Puerto Rico. The modified single seed descent method and pedigree method were used to develop the variety. The F1 - F2 generations were grown in Isabela, Puerto Rico and Kunia, Hawaii respectively with the F3 grown 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 'P15T46R2' 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 seed weights were based on 3 measurements. Mean differences were significant at the 5% probability level based on a Paired student's T-test.
Comparison table for 'P15T46R2' with reference varieties 'P16T04R' and 'DK29-60RY'
Seed weight (grams per 100 seeds)
|std. deviation 2015||1.0||0.5||0.5|
|std. deviation 2016||1.3||0.6||0.6|
Click on image for larger view
Soybean: 'P15T46R2' (centre) with reference varieties 'P16T04R' (left) and 'DK29-60RY' (right)
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