ProStar

Pea

Variety Description

Varieties used for comparison: 'CDC Amarillo' and 'Boost'

Summary: The plants of 'ProStar' have no leaflets present whereas those of 'CDC Amarillo' have leaflets. The stipule of 'ProStar' has no flecking present whereas the stipule of 'CDC Amarillo' has very sparse flecking. The maximum width of the flower standard for 'ProStar' is wider than that of 'CDC Amarillo' and 'Boost'. The maximum pod width is narrower for 'ProStar' than for 'CDC Amarillo'. At maturity, the stem of 'ProStar' is shorter than that of 'CDC Amarillo'. The one hundred seed weight of 'ProStar' is greater than that of 'Boost'.

Description:

PLANT: field type, anthocyanin colouration absent, medium intensity of green foliage at flowering, flowers mid-season

STEM: anthocyanin colouration of axil absent, fasciation absent, medium to many nodes up to and including the first fertile node

LEAF: leaflets absent
STIPULE: medium size, medium length from axil to tip, medium length lobe below axil, flecking absent

PEDUNCLE: absent or few bracts
FLOWER: maximum of two per node
STANDARD: white, moderately raised base, medium undulation
UPPER SEPAL: medium to broad, acuminate apex

POD: absent or partial parchment, no thickened wall, blunt distal part, absent or very weak curvature, medium green when fully swollen, suture strings present
IMMATURE SEED: medium green intensity
DRY SEED: ellipsoid, simple starch grains, weak intensity of wrinkling of cotyledon, yellow cotyledon, matures mid-season
HILUM: same colour as testa

Origin & Breeding History: 'ProStar' (experimental designations LRP 1813 and DL1813) originated from the cross between the lines 10L06 and SR5149 conducted in 2013 at the breeding station of RAGT 2n in Louville, France. Following five self-pollination generations, a single F6 row was selected in 2016 based on standing ability, plant length, disease tolerance, insect tolerance and maturity. It was multiplied and tested in several environments to assess seed yield, thousand kernel weight and protein content and purified from the F7 to F9 generations. Breeder seed was established after the F10 generation in 2021.

Tests & Trials: The comparative trials for 'ProStar' were conducted at the DL Seeds Research Station, in Morden, Manitoba during the 2021 and 2022 growing seasons. The trials were arranged in a RCB design consisting of 3 replications per variety. Each plot 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 except for the 100 seed weight where 3 measurements were taken per variety per year. Mean differences were significant at the 5% confidence probability level based on a paired Student's t-test.

Comparison tables for 'ProStar' with reference varieties 'CDC Amarillo' and 'Boost'

Flower standard maximum width (cm)

Pod maximum width (cm)

Stem length at maturity (cm)

Seed weight (grams per 100 seeds) (g)

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Pea: 'ProStar' (top) with reference variety 'CDC Amarillo' (bottom left)

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Pea: 'ProStar' (top) with reference variety 'CDC Amarillo' (bottom right)

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Pea: 'ProStar' (top) with reference variety 'CDC Amarillo' (bottom left)