CDC Boundless

Pea

Variety Description

Varieties used for comparison: 'CDC Amarillo', 'CDC Inca' and 'CDC Engage'

Summary: The stipule of 'CDC Boundless' has a sparse to medium density of flecking while the stipule of 'CDC Amarillo' has dense to very dense flecking. The plants of 'CDC Boundless' flower later than the plants of 'CDC Amarillo' and 'CDC Inca'. The pod curvature for 'CDC Boundless' ranges between absent or very weak to weak while it ranges between weak and weak to medium for 'CDC Engage' and 'CDC Amarillo'. The 100 seed weight for 'CDC Boundless' is less than the 100 seed weight for 'CDC Engage' and greater than that of 'CDC Inca'.

Description:

PLANT: field type, no anthocyanin colouration, green foliage, flowers mid to late season

STEM: no anthocyanin colouration of axil, no fasciation, medium to long, medium number of nodes up to and including the first fertile node

LEAF: leaflets absent
STIPULE: short to medium length, narrow to medium width, short to medium length from axil to tip, very short to short lobe below axil, sparse to medium density flecking

FLOWER: maximum of two per node
STANDARD: white, narrow to medium width, level to moderately arched base, absent or very weak undulation
UPPER SEPAL: medium width, accuminate apex

POD: medium to long, medium width, entire parchment, ranging between absent or very weak to very weak curvature, light to medium green, medium number of ovules
IMMATURE SEED: light to medium green
SEED: ellipsoid, simple starch grains, yellow cotyledon, medium weight, matures mid-season
HILUM: same colour as testa

Origin & Breeding History: 'CDC Boundless' (experimental designation CDC 5779-1) originated from the cross between 5627 and CDC 2942-4, followed by a backcross to CDC 2942-4 conducted in 2014 at the Crop Development Centre at the University of Saskatchewan, Saskatoon, Saskatchewan. The variety was developed from a single plant selection from the F2 population. The selection criteria for 'CDC Boundless' included plant type, seed type, grain yield, days to maturity, vine length, resistance to lodging, seed weight, resistance to seed coat breakage and disease resistance. Thirty four F9 sub-lines were bulked to establish breeder seed in 2021.

Tests & Trials: The comparative tests and trials for 'CDC Boundless' were conducted at the Sutherland Field Site of the Crop Development Centre of the University of Saskatchewan, Saskatoon, Saskatchewan during the 2021 and 2022 growing seasons. The trials were arranged in a RCB design consisting of 2 replications per variety. Each replicate consisted of 3 rows spaced 30 cm apart, with a row length of 3.66 metres and a planting density of 84 seeds per square metre. The measured characteristics were based on 20 measurements per variety per year except for 100 seed weight which was based on 8 measurements per variety per year. The mean differences were significant at the 5% confidence probability level based on LSD values.

Comparison tables for 'CDC Boundless' with reference varieties 'CDC Amarillo', 'CDC Inca' and 'CDC Engage'

Days to flower (days from planting to when 30% of plants have at least one flower)

Seed weight (grams per 100 seeds) (g)

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Pea: 'CDC Boundless' (top left) with reference varieties 'CDC Amarillo' (top right), 'CDC Engage' (bottom left) and 'CDC Inca' (bottom right)