P17A87E
| Denomination: | 'P17A87E' |
|---|---|
| Previously Proposed Denomination: | '5PLKD89' |
| Synonym: | '5PLKD89' |
| 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: |
Andrea Kalvig, Pioneer Hi-Bred International, Inc., Johnston, United States of America Martin Fabrizius, Pioneer Hi-Bred International, Inc., Redwood Falls, United States of America |
| Agent in Canada: |
Pioneer Hi-Bred Production Company 240, 115 Quarry Park Road SE Calgary, Alberta T2C 5G9 Canada Tel: 306-203-4895 |
| Application Date: | 2022-05-31 |
| Provisional Protection: | 2022-05-31 |
| Application Number: | 22-10961 |
Variety Description
Variety used for comparison: 'P18A98X'
Summary: On the middle third of the main stem, the pubescence of '5PLKD89' is light tawny, whereas it is grey for 'P18A98X'. When 95% of the pods are ripe, the plants of '5PLKD89' are shorter than those of 'P18A98X'.
Description:
HYPOCOTYL: anthocyanin colouration present
PLANT: indeterminate, light tawny pubescence on middle third of main stem, begins flowering and matures mid-season
LEAF: pointed ovate lateral leaflet
FLOWER: violet
POD: medium brown
SEED: yellow ground colour of testa
HILUM: black
Origin & Breeding History: '5PLKD89' originated from a cross between the varieties '5PCET67' and '5PHQF75' conducted in 2017 in Johnston, Iowa using the backcrossing method of plant breeding. From 2018 to 2020, seven generations were advanced between Johnston, Iowa, Algona, Iowa and Salinas, Puerto Rico. The F1 line was planted and backcrossed to '5PCET67', followed by three additional backcross generations. The BC4F1 line was planted and harvested in bulk followed by multiple single plant selections. Line purification rows were selected and harvested in bulk in 2020. Selection criteria included yield, seed quality traits, maturity, herbicide tolerance and pest resistance. '5PLKD89' was selected at the F7 generation. Breeder seed production commenced in 2020.
Tests & Trials: The comparative trials for '5PLKD89' were conducted in Thamesford, Ontario during the 2022 and 2023 growing seasons. Trials were planted in a RCB design and consisted of 3 replicates for each variety. Plots consisted of 4 rows, 5 metres in length and a row spacing of 76 cm. The trial consisted of 600 plants per variety. For each variety, the plant height was based on 30 measurements. Mean differences were significant at the 5% probability level based on a Student's t-test.
Comparison table for 'P17A87E' with reference variety 'P18A98X'
Plant height (cm)
| 'P17A87E' | 'P18A98X' | |
|---|---|---|
| mean 2022 | 90.4 | 94.4 |
| std. deviation 2022 | 5.27 | 6.92 |
| mean 2023 | 87.1 | 101.1 |
| std. deviation 2023 | 2.30 | 1.91 |
Click on image for larger view
Soybean: '5PLKD89' (left) with reference variety 'P18A98X' (right)
Click on image for larger view
Soybean: '5PLKD89' (left) with reference variety 'P18A98X' (right)
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