Market Class: Yellow Pea
Year Registered: 2021
Sub-licensed Outside of SK: Pending
International Distribution Rights: No
Breeder: Dr. Tom Warkentin, Crop Development Centre, University of Saskatchewan, Saskatoon, SK
Plant Breeders’ Rights: Applied
Description
CDC Tollefson is a mid-maturing, very high-yielding yellow pea that was the highest yielding pea after 4 years of testing in the Co-op and regional trials in Saskatchewan. Compared to the check variety CDC Amarillo, CDC Tollefson yielded 108% in the south and 110% in the north. This represents a 4 – 7% yield increase vs. the current CDC varieties CDC Inca, CDC Spectrum and CDC Lewochko. It has very good standability; similar to CDC Amarillo and CDC Spectrum and medium-long vine length. It has improved disease resistance vs. CDC Spectrum, CDC Lewochko or CDC Inca and is rated moderately resistant to Fusarium root rot. It has good seed characteristics and is rated good for resistance to seed coat breakage, dimpling and greenness (Table 1). Protein is similar to CDC Amarillo. Application for PBR’91 protection for CDC Tollefson has been submitted.
Strengths
- High yield in both north & south geographies
- Improved resistance to Fusarium wilt and mycosphaerella blight – better than CDC Inca, CDC Spectrum or CDC Lewochko
- Good seed characteristic package – rated good for:
- Resistance to seed coat breakage;
- Resistance to dimpling;
- Greenness (less green coloration) – better than CDC Inca or CDC Spectrum
- Medium-long vine length; taller than CDC Amarillo or AAC Lacombe
- Good lodging resistance; similar to CDC Spectrum and CDC Amarillo, better than CDC Inca or CDC Meadow
- Powdery mildew resistance
Neutral
- Medium seed size (similar to CDC Amarillo)
- Medium maturity
- Moderate protein (similar to CDC Amarillo)
Table 1: Agronomic Performance Data for Yellow Peas 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* | NORTH 3 & 4* | MYCOSPHAERELLA BLIGHT*** | POWDERLY MILDEW | FUSARIUM WILT | SEED COAT BREAKAGE | SEED COAT DIMPLING**** | GREENNESS***** | ||||||||
| CDC AMARILLO (CHECK) | 2012 | 12 | 100 | 100 | MEDIUM | 3.5 | 85 | 4.5 | R | MR | FAIR | FAIR | GOOD | 230 | 23.0 |
| ABARTH | 2012 | 7 | 93 | 90 | EARLY | 3.5 | 75 | 5.0 | R | I | FAIR | GOOD | GOOD | 280 | -0.1 |
| AAC ABERDEEN | 2019 | 3 | 107 | 103 | MEDIUM | 3.5 | 85 | 4.5 | R | I | FAIR | FAIR | GOOD | 250 | -1.1 |
| AAC ARDILL | 2013 | 10 | 102 | 99 | MEDIUM | 3.5 | 85 | 4.5 | R | MR | GOOD | GOOD | GOOD | 230 | -1.5 |
| AAC ASHER | 2017 | 3 | 103 | 100 | MEDIUM | 4.5 | 75 | 4.5 | R | I | – | FAIR | GOOD | 260 | -0.5 |
| CDC ATHABASCA | 2016 | 7 | 93 | 97 | MEDIUM | 3.0 | 85 | 4.5 | R | I | FAIR | FAIR | GOOD | 300 | +0.5 |
| CDC CANARY | 2017 | 6 | 98 | 98 | EARLY | 3.5 | 85 | 4.5 | R | I | GOOD | FAIR | FAIR | 230 | +0.1 |
| AAC CARVER | 2014 | 5 | 102 | 100 | EARLY | 4.0 | 85 | 5.0 | R | I | GOOD | FAIR | GOOD | 240 | -1.3 |
| AAC CHROME | 2017 | 4 | 105 | 101 | MEDIUM | 4.5 | 75 | 4.5 | R | I | GOOD | GOOD | GOOD | 240 | -1.0 |
| CDC INCA | 2015 | 7 | 104 | 99 | MEDIUM | 4.0 | 85 | 4.5 | R | I | GOOD | GOOD | FAIR | 230 | -0.6 |
| AAC LACOMBE | 2013 | 6 | 96 | 100 | MEDIUM | 3.5 | 85 | 5.0 | R | I | FAIR | FAIR | FAIR | 250 | -0.7 |
| CDC LEWOCHKO | 2018 | 7 | 102 | 103 | MEDIUM | 3.5 | 90 | 4.5 | R | I | GOOD | GOOD | GOOD | 230 | +0.9 |
| CDC MEADOW | 2006 | 10 | 93 | 90 | EARLY | 4.0 | 85 | 5.0 | R | I | GOOD | GOOD | GOOD | 220 | -0.5 |
| AAC PROFIT | 2018 | 3 | 100 | 108 | MEDIUM | 4.5 | 90 | 4.5 | R | I | GOOD | GOOD | GOOD | 230 | +0.8 |
| CDC SAFFRON | 2011 | 10 | 98 | 92 | EARLY | 4.0 | 80 | 4.5 | R | I | GOOD | FAIR | GOOD | 250 | -0.3 |
| CDC SPECTRUM | 2016 | 7 | 104 | 101 | MEDIUM | 3.5 | 85 | 4.5 | R | I | GOOD | GOOD | FAIR | 240 | +0.7 |
| CDC TOLLEFSON | 2021 | 4 | 108 | 110 | MEDIUM | 3.5 | 90 | 4.0 | R | MR | GOOD | GOOD | GOOD | 240 | -0.2 |
Source: Varieties of Grain Crops (SaskSeed Guide) and Crop Development Centre, U of S
*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%
*****Greenness: Good = 0-15%; Fair = 16-40%
