P21A53E
| Denomination: | 'P21A53E' |
|---|---|
| Previously Proposed Denomination: | '5PSPF20' |
| Synonym: | '5PSPF20' |
| 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 Andrea Kalvig, Pioneer Hi-Bred International, Inc., Johnston, 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: | 22-10968 |
Variety Description
Variety used for comparison: 'P21A28X'
Summary: When 50% of the flowers are open, the flower of '5PSPF20' is white whereas it is violet for 'P21A28X'. When 95% of the pods are ripe, the intensity of brown colour of the pod of '5PSPF20' is light whereas it is dark for 'P21A28X'. At maturity, the hilum on the seed of '5PSPF20' is medium brown whereas it is black for 'P21A28X'. The plants of '5PSPF20' mature later than those of 'P21A28X'.
Description:
HYPOCOTYL: anthocyanin colouration present
PLANT: indeterminate growth type, light tawny pubescence on middle third of main stem, begins flowering and matures mid- to late season
LEAF: rounded ovate lateral leaflet
FLOWER: white
POD: light brown
SEED: yellow ground colour of testa
HILUM: medium brown
Origin & Breeding History: '5PSPF20' originated from a cross between two experimental varieties with no public or commercial designations. Both parents were each BC3F1 experimental varieties derived from a cross between 'P22T73R' and '5PHQF75' conducted in 2018 in Johnston, Iowa using the pedigree method of plant breeding. From 2018 to 2020, six generations were advanced between Johnston, Iowa, Salinas, Puerto Rico and Princeton, Illinois. The F1 line was harvested in bulk, followed by single seed descent selection and multiple single plant selections. Line purification rows were selected and harvested in bulk in 2020. Selection criteria included yield, maturity, seed quality traits, herbicide tolerance and pest resistance. '5PSPF20' was selected at the F6 generation. Breeder seed was production commenced in 2020.
Tests & Trials: The comparative trials for '5PSPF20' were conducted in Chatham, 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.
Comparison table for 'P21A53E' with reference variety 'P21A28X'
Number of days to maturity (from planting to maturity)
| 'P21A53E' | 'P21A28X' | |
|---|---|---|
| 2022 | 117 | 113 |
| 2023 | 126 | 123 |
Click on image for larger view
Soybean: '5PSPF20' (left) with reference variety 'P21A28X' (right)
Click on image for larger view
Soybean: '5PSPF20' (left) with reference variety 'P21A28X' (right)
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