Lacross
| Denomination: | 'Lacross' |
|---|---|
| Botanical Name: | Pisum sativum |
| Applicant/Holder: |
Norddeutsche Pflanzenzücht Hans-Georg Lembke KG Hohenlieth, D-24363 Holtsee Germany |
| Breeder: |
Olaf Sass, Norddeutsche Pflanzenzücht, Holtsee, Germany |
| Agent in Canada: |
DL Seeds Inc. P.O. Box 2499 Morden, Manitoba R6M 1G6 Canada Tel: 204-331-3611 ext. 3223 |
| Application Date: | 2021-02-12 |
| Provisional Protection:: | 2021-02-12 |
| Application Number: | 21-10433 |
Variety Description
Variety used for comparison: 'CDC Horizon'
Summary: The stipule of 'Lacross' is medium to large, and wider than that of 'CDC Horizon' which is small. The lobe below the axil of the stipule of 'Lacross' is of medium length while that of 'CDC Horizon' is absent or very short to short. The base of the standard of the flower of 'Lacross' is moderately raised while that of 'CDC Horizon' is level to moderately arched. At maturity, the stem of 'Lacross' is longer than that of 'CDC Horizon'.
Description:
PLANT: semi-leafless, field type, no anthocyanin colouration, medium to dark green foliage at flowering, flowers mid-season
STEM: no fasciation, many nodes up to and including the first fertile node
LEAF: leaflets absent
STIPULE: medium to large, medium to long from axil to tip, medium length lobe below axil, no flecking
FLOWER: maximum of two per node
STANDARD: white, moderately raised base
UPPER SEPAL: medium width, acute to rounded apex
POD: absent or partial parchment, no thickened wall, blunt distal part, absent or very weak to weak curvature, light to medium green when fully swollen, suture strings present
IMMATURE SEED: light green
DRY SEED: ellipsoid, compound starch grain, yellow cotyledon, matures mid-season
HILUM: same colour as testa
Origin & Breeding History: 'Lacross' originated from the cross between 'Livioletta' and the F1 of 'Florida' and 'Santana' conducted in 2001 at the breeding station of Norddentsche Pflanzenzucht breeding in Hohenlieth, Germany. In 2007, a single plant was selected from the F6 generation for its straw stiffness, plant length, early vigour, seed size and colour and semi-leaflessness. It was multiplied and tested in several environments and yield trials and purified during the next generations.
Tests & Trials: The comparative trials for 'Lacross' were conducted at the DL Seeds Research Station, in Morden, Manitoba during the 2020 and 2021 growing seasons. The trials were arranged in a RCB design consisting of 3 replications per variety. Each replicate consisted of 6 rows spaced 17 cm apart, with a row length of 4 metres and a planting density of 80 seeds per square metre. The measured characteristics were based on 100 measurements per variety per year. The mean differences were significant at the 5% confidence probability level based on a paired Student's t-test.
Comparison tables for 'Lacross' with reference variety 'CDC Horizon'
Stipule width (cm)
| 'Lacross' | 'CDC Horizon' | |
|---|---|---|
| mean 2020 | 2.18 | 1.74 |
| std. deviation 2020 | 0.59 | 0.40 |
| mean 2021 | 3.24 | 1.97 |
| std. deviation 2021 | 0.86 | 0.45 |
Stem length at maturity (cm)
| 'Lacross' | 'CDC Horizon' | |
|---|---|---|
| mean 2020 | 80.85 | 61.90 |
| std. deviation 2020 | 11.12 | 10.73 |
| mean 2021 | 125.95 | 81.55 |
| std. deviation 2021 | 26.83 | 12.28 |
Click on image for larger view
Pea: 'Lacross' (top) with reference variety 'CDC Horizon' (bottom left)
Click on image for larger view
Pea: 'Lacross' (top) with reference variety 'CDC Horizon' (bottom left)
Click on image for larger view
Pea: 'Lacross' (top) with reference variety 'CDC Horizon' (bottom left)
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