Market Class: Yellow Pea
Year Released to Select Seed Growers: 2015
Sub-licensed Outside of SK: SeedNet
International Distribution Rights: Canterra Seeds Ltd./Meridian Seeds
Breeder: Dr. Tom Warkentin, Crop Development Centre, University of Saskatchewan, Saskatoon, SK
Plant Breeders Rights:
Description
In 9 years of testing in the Co-op and Regional trials in Saskatchewan (Table 1), CDC Inca yielded 104% compared to CDC Amarillo in the southern regions and 99% in the north. CDC Inca has PBR’91 protection.
Strengths
- High yield, particularly in the south
- Good resistance to seed coat breakage
- Medium vine length
- Powdery mildew resistance
Neutral
- Medium seed size
- Round seed shape
- Medium maturity
- Moderate cooking time
- Fair resistance to Mycosphaerella blight and Fusarium wilt
Weaknesses
- Lower protein (-0.6%) compared to CDC Amarillo
Table 1: Agronomic Performance 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* | NORTH3 & 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 ARDILL | 2013 | 10 | 102 | 99 | MEDIUM | 3.5 | 85 | 4.5 | R | MR | GOOD | GOOD | GOOD | 230 | -1.5 |
| CDC ATHABASCA | 2016 | 7 | 93 | 97 | MEDIUM | 3.0 | 85 | 4.5 | R | I | FAIR | FAIR | GOOD | 300 | +0.5 |
| CDC CANARY | 2017 | 8 | 98 | 98 | EARLY | 3.5 | 85 | 4.5 | R | I | GOOD | FAIR | FAIR | 230 | +0.1 |
| AAC CARVER | 2014 | 7 | 102 | 100 | EARLY | 4.0 | 85 | 5.0 | R | I | GOOD | FAIR | GOOD | 240 | -1.3 |
| AAC CHROME | 2017 | 6 | 105 | 101 | MEDIUM | 4.5 | 75 | 4.5 | R | I | GOOD | GOOD | GOOD | 240 | -1.0 |
| CDC INCA | 2015 | 9 | 104 | 99 | MEDIUM | 4.0 | 85 | 4.5 | R | I | GOOD | GOOD | FAIR | 230 | -0.6 |
| AAC LACOMBE | 2013 | 8 | 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 | 12 | 93 | 90 | EARLY | 4.0 | 85 | 5.0 | R | I | GOOD | GOOD | GOOD | 220 | -0.5 |
| CDC GOLDEN | 2003 | 10 | 92 | 83 | MEDIUM | 4.5 | 75 | 5.0 | R | I | GOOD | GOOD | GOOD | 230 | +0.7 |
| CDC SAFFRON | 2011 | 12 | 98 | 92 | EARLY | 4.0 | 80 | 4.5 | R | I | GOOD | FAIR | GOOD | 250 | -0.3 |
| CDC SPECTRUM | 2016 | 9 | 104 | 101 | MEDIUM | 3.5 | 85 | 4.5 | R | I | GOOD | GOOD | FAIR | 240 | +0.7 |
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%
*****Greenness: Good = 0-15%; Fair = 16-40%
Statistical analysis of 10 years of long-term RVT data (86 site-years for CDC Inca) ranked CDC Inca second from the top for yield among 18 historical and new yellow pea varieties. Top spot went to the emerging variety CDC Chrome. CDC Inca consistently yielded significantly higher than CDC Meadow and would be a good replacement for this older variety. Statistical analysis by site showed CDC Inca ranking in the top 5 varieties at most locations except for Melfort, Scott and Kamsack. Ranking in the Saskatoon area (3 locations) varied with Inca taking top spot overall at Sutherland (first in 3 of the 7 years tested and in the top 3 in 2 years). At nearby Floral location, AAC Chrome yielded significantly higher than CDC Inca. The best sites for CDC Inca included Outlook, Sutherland, Limerick, Lucky Lake, Meath Park and Rosthern which represents a very broad geographical range.
Figure 1. Long term yield (left) and relative yield ranking (right) of yellow pea varieties from 10 years of RVT data in SK
