Pramedi
| Denomination: | 'Pramedi' |
|---|---|
| Botanical Name: | Trifolium pratense × Trifolium medium |
| Applicant/Holder: |
Agricultural Research, Ltd. Zahradni 400/1 Jihomoravsky kraj Troubsko 664 41 The Czech Republic Tel: 00420547138826 Jakesová, Hana Fulnecká 100 Moravskoslezky kraj Hladké Zivotice 74247 The Czech Republic Tel: 00420606670963 Masaryk University Zerotinovo Namesti 617/9 Jihomoravsky kraj Brno 60 177 The Czech Republic Tel: 00420549498016 Research Institute for Fodder Crops, Ltd. Zahradni 400/1 Jihomoravsky kraj Troubsko 664 41 The Czech Republic Tel: 00420547138826 |
| Breeder: |
Hana Jakesová, Hladké Zivotice, The Czech Republic Jana Repkova, Masaryk University, Brno, The Czech Republic Jan Nedelnik, Research Institute for Fodder Crops, Ltd., Troubsko, The Czech Republic Jan Nedelnik, Agricultural Research, Ltd., Troubsko, The Czech Republic |
| Agent in Canada: |
Dohnalova, Nadezda 738 Dominion Road Fort Erie, Ontario L2A1G8 Canada |
| Application Date: | 2016-05-27 |
| Provisional Protection:: | 2016-05-27 |
| Application Number: | 16-8938 |
| Grant of Rights Date: | 2024-06-18 |
| Certificate Number: | 7137 |
| Grant of Rights Termination Date: | 2044-06-18 |
Variety Description
Varieties used for comparison: 'Wildcat', 'Melot' and 'Tempus'
Summary: The plants of 'Pramedi' are larger than the plants of 'Melot'. The leaf of 'Pramedi' has a medium amount of conspicuousness of markings whereas the leaf of 'Melot' has absent or very weak to weak conspicuousness of markings and 'Tempus' has strong conspicuousness of markings. The shape of the middle leaflet is ovate for 'Pramedi' whereas it is elongated for 'Melot'. The number of inflorescence of 'Pramedi' is few whereas the number for 'Wildcat' and 'Tempus' is many.
Description:
PLANT: perennial type, tetraploid, no stolons, flowers midseason, intermediate growth habit at end of growing cycle
STEM: sparse pubescence, thick, few to medium number of internodes
FOLIAGE: medium to dense, dark green
LEAF: medium conspicuousness of markings, entire margin, medium pubescence on lower side
MIDDLE LEAFLET: ovate medium size, small length to width ratio
PEDUNCLE: thin to medium thickness
INFLORESCENCE: medium number, globose shape
FLOWER: red
SEED COAT: yellow to brown
Origin & Breeding History: The initial cross was conducted between the red clover variety (Trifolium pretense) 'Tetra' and an unknown zigzag clover variety (Trifolium medium) between 1986 to 1988. The F1 generation produced 10 plants. In the subsequent years, a population was created using the F1 progeny crossed with the Trifolium pretense variety 'Amos' for 5 generations. The flow cytometry method was used to select plants with higher DNA content compared to tetraploid Trifolium pretense. The hybrid character was verified not only via flow cytometry but also based on cytogenetic level where there were higher numbers of chromosomes observed. The resulting variety was further backcrossed with the variety 'Amos' between 1995 and 2010. Throughout the process, selections were made based on ploidy, plant height, plant vigour, and plant health. In 2012, 'Pramedi' was registered in the Czech Republic.
Tests & Trials: The comparative trial for 'Pramedi' was conducted in Minto, Manitoba during the 2022 growing season. The trial was planted in a RCB Design with 4 replicates. Each replicate consisted of one row with 22 plants spaced 30 cm apart with 40 cm between the rows. There were 88 plants per variety. Measured characteristics were based on 62 to 65 measurements per variety. Mean differences were significant at the 5% probability level based on paired Student's T-tests. Results were supported by the official technical examination report 5082339, purchased from the Central Institute for Supervising and Testing in Agriculture, Czech Republic.
Comparison tables for 'Pramedi' with reference varieties 'Wildcat', 'Melot' and 'Tempus'
Plant natural height (in year of sowing) (cm)
| 'Pramedi' | 'Wildcat' | 'Melot' | 'Tempus' | |
|---|---|---|---|---|
| mean | 37.6 | 41.1 | 15.3 | 40.3 |
| std. deviation | 12.5 | 11.6 | 7.6 | 12.2 |
Plant width (cm)
| 'Pramedi' | 'Wildcat' | 'Melot' | 'Tempus' | |
|---|---|---|---|---|
| mean | 73.1 | 77.4 | 32.4 | 79.7 |
| std. deviation | 25.6 | 25.3 | 17.5 | 30.3 |
Click on image for larger view
Clover: 'Pramedi' (top) with reference varieties 'Wildcat' (top centre), 'Melot' (bottom centre) and 'Tempus' (bottom)
Click on image for larger view
Clover: 'Pramedi' (top left) with reference varieties 'Wildcat' (top right), 'Melot' (bottom left) and 'Tempus' (bottom right)
Click on image for larger view
Clover: 'Pramedi' (top left) with reference varieties 'Wildcat' (top right), 'Melot' (bottom left) and 'Tempus' (bottom right)
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