Market Class: Field Pea
Year Released to Select Seed Growers: 2016
Sub-licensed Outside of SK: SeCan
International Distribution Rights: Canterra Seeds Ltd./Meridian Seeds
Breeder: Dr. Tom Warkentin, Crop Development Centre, University of Saskatchewan, Saskatoon, SK
Plant Breeders Rights:
Description
CDC Jasper is a forage field pea variety with high biomass production. In four years of testing in the pea forage elite trials (2012–2015), CDC Jasper had the highest biomass versus other forage pea varieties commonly grown in Western Canada. Dry matter was 105% of the forage pea check variety 40-10 (Table 1). Relative to other forage pea varieties, CDC Jasper had high grain yield, good lodging resistance, and larger seed size (Tables 1 & 2). In the co-op and regional trials in Saskatchewan, CDC Jasper had high protein relative to the check variety CDC Amarillo. CDC Jasper has PBR’91 protection.
Strengths
- High biomass
- High grain yield versus other forage pea varieties
- High protein versus CDC Amarillo
- Resistant to powdery mildew
- Very good resistance to seed coat breakage
Neutral
- Medium maturity
- Good lodging resistance
- Fair resistance to Mycosphaerella Blight
Table 1: Agronomic Performance for CDC Jasper from 2012 to 2015 Pea Silage Elite Trials (10 site years)
| VARIETY | YEAR RELEASED | YIELD % Of 40 – 10 | HEIGHT | LODGING (1-9)* | MATURITY (1 – 3) | SEED WEIGHT (G/1000) | DESCRIPTION | |
| GRAIN YIELD | DRY MATTER | |||||||
| 40 – 10 (CHECK) | n/a | 100 | 100 | 133 | 7.8 | 3 | 128 | Small seed size and tall. Fully leaved variety with speckled seed coat. Poor lodging. |
| CDC TUCKER | 2006 | 140 | 98 | 92 | 4 | 2.5 | 158 | High biomass, improved protein, and relative feed value compared to Trapper and 40-10. |
| CDC LEROY | 2008 | 124 | 89 | 84 | 5.2 | 1.8 | 132 | High biomass, improved protein, and relative feed value compared to Trapper and 40-10. |
| AAC HORIZON | 2010 | 130 | 100 | 97 | 3.8 | 2.3 | 142 | High biomass with similar feed value to Trapper and 40-10. |
| CDC JASPER | 2016 | 133 | 105 | 98 | 3.9 | 2.5 | 175 | Highest biomass combined with high grain yield and high relative feed value. |
Source: CDC Pulse Breeding Group, U of S
*Lodging score: 1 = Upright; 9 = Completely lodged
Table 2: Agronomic Performance for CDC Jasper from Co-op and Regional Trials in Saskatchewan
| VARIETY | YEAR REGISTERED | YEARS TESTED | YIELD % AMARILLO | MATURITY | LODGING (1-9)** | VINE LENGTH (CM) | RESISTANCE TO: | SEED WEIGHT (G/1000) | PROTEIN VS. CDC AMARILLO | ||||
| 1, 2, & SOUTH 3* | NORTH3 & 4* | MYCOSPHAERELLA BLIGHT*** | POWDERLY MILDEW | SEED COAT BREAKAGE | SEED COAT DIMPLING**** | ||||||||
| CDC AMARILLO (CHECK) | 2012 | 10 | 100 | 100 | MEDIUM | 3.5 | 85 | 4.5 | R | FAIR | FAIR | 230 | 23.0 |
| 40 – 10 | n/a | 3 | 68 | 65 | MEDIUM | 8.5 | 130 | 4.5 | S | GOOD | GOOD | 140 | +3.2 |
| CDC JASPER | 2016 | 3 | 81 | 82 | MEDIUM | 4.5 | 105 | 4.5 | R | GOOD | GOOD | 180 | +2.0 |
| CDC HORIZON | 2010 | 4 | 88 | 78 | MEDIUM | 4.5 | 100 | 4.5 | R | GOOD | GOOD | 170 | +2.2 |
Source: Varieties of Grain Crops (SaskSeed Guide)
*Area 1: Brown soil zone; Area 2: Dark brown; Area 3: Black; Area 4: Dark grey
**Lodging score: 1 = Upright; 9 = Completely lodged
***Mycosphaerella blight score: 1 = No disease, 9 = Completely blighted
****Seed coat dimpling: Very Good = 0-5%; Good = 6-20%; Fair = 21-50%
