Redbat 88

Pea

Denomination: 'Redbat 88'
Previously Proposed Denomination: '2799-3'
Botanical Name: Pisum sativum
Applicant/Holder: University of Saskatchewan
Crop Development Centre
4D36 Agriculture Building, 51 Campus Drive
Saskatoon, Saskatchewan
S7N 5A8
Canada
Breeder: Tom Warkentin, University of Saskatchewan, Saskatoon, Saskatchewan
Application Date: 2014-06-02
Application Number: 14-8348
Grant of Rights Date: 2017-05-10
Certificate Number: 5480
Grant of Rights Termination Date: 2037-05-10

Variety Description

Varieties used for comparison: 'Redbat 8' and 'CDC Meadow'

Summary: The number of nodes, up to and including the first fertile node, on the stem of 'Redbat 88' is medium to many whereas it is few to medium for both reference varieties. 'Redbat 88' is late flowering whereas both reference varieties flower mid-season. The pods of 'Redbat 88' are longer than those of both reference varieties. The stem length of 'Redbat 88' is longer than that of both reference varieties. The cotyledons of 'Redbat 88' are orange whereas those of 'CDC Meadow' are yellow. The 100 seed weight of 'Redbat 88' is heavier than that of 'Redbat 8'.

Description:

PLANT: field type, no anthocyanin colouration, no stem fasciation, green at flowering, no leaflets, late maturing

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

STIPULE: medium length from axil to tip, absent or very short lobe below axil, sparse density of flecking

FLOWER: late blooming, two flowers per node
STANDARD: white, moderately arched base, absent to very weak undulation
UPPER SEPAL: narrow to medium width

POD: parchment entire, thickened wall absent, blunt distal part, very weak curvature, green when fully swollen, suture strings present
IMMATURE SEED: light green
DRY SEED: ellipsoid shape, simple starch grain, orange cotyledon, hilum same colour as testa

Origin & Breeding History: 'Redbat 88' (experimental designation 2799-3) was developed from the cross '8510' / 'CDC Dundurn' // 'CDC Bronco' /// 'CDC Meadow' carried out in 2004 at the Crop Development Centre of the University of Saskatchewan, Saskatoon, Saskatchewan. In 2005, a single plant was selected from the F2 population for orange cotyledon colour. Yield, days to maturity, days to flower, vine length, resistance to lodging and seed weight were evaluated in the F3 and subsequent generations.

Tests & Trials: Tests and trials for 'Redbat 88' were conducted at the Sutherland Field Site of the Crop Development Centre of the University of Saskatchewan, Saskatoon, Saskatchewan during the 2014 and 2015 growing seasons. The trials were conducted using a complete randomized block 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 65 seeds per square metre. Measured characteristics were based on 20 measurements 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 'Redbat 88' with reference varieties 'Redbat 8' and 'CDC Meadow'

Pod length (cm)

  'Redbat 88' 'Redbat 8' 'CDC Meadow'
mean 2014 7.3 6.6 6.6
std. deviation 2014 0.5 0.4 0.6
mean 2015 6.8 6.3 6.2
std. deviation 2015 0.4 0.6 0.6

Stem length (cm)

  'Redbat 88' 'Redbat 8' 'CDC Meadow'
mean 2014 84.7 76.5 77.6
std. deviation 2014 3.6 6.3 7.6
mean 2015 75.6 65.5 67.2
std. deviation 2015 4.9 4.9 7.1

Seed weight (grams/100 seeds)

  'Redbat 88' 'Redbat 8' 'CDC Meadow'
mean 2014 20.8 18.7 19.8
std. deviation 2014 0.5 0.3 0.0
mean 2015 22.6 20.2 21.6
std. deviation 2015 1.0 0.4 0.3

Click on image for larger view
Redbat 88
Pea: 'Redbat 88' (left) with reference varieties 'Redbat 8' (centre) and 'CDC Meadow' (right)

Click on image for larger view
Redbat 88
Pea: 'Redbat 88' (left) with reference varieties 'Redbat 8' (centre) and 'CDC Meadow' (right)

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