Extra Small Red Lentil
Year Released to Select Seed Growers: 2014
Sub-licensed Outside of SK: SeCan
International Distribution Rights: FP Genetics
Breeder: Dr. Albert Vandenberg, Crop Development Centre, University of Saskatchewan, Saskatoon, SK
Plant Breeders Rights: Applied
Description
CDC Roxy is an extra-small red lentil variety. CDC Roxy was tested in the Lentil Registration Recommendation Trial “C” in 2011 and 2012 where it yielded 104% of CDC Maxim. In eight years of testing in the co-op and regional trials in Saskatchewan, CDC Roxy yielded 102% of CDC Maxim in the Brown and Dark Brown soil zones, and 98% in the Black and Dark Gray soil zones (Table 1). CDC Roxy has good resistance to Anthracnose (Table 2). Seed type is acceptable for the extra-small dehulled red lentil market. Thickness of the seed is greater than that of CDC Rosetown, the extra-small red check at the time of testing. Application for PBR’91 protection for CDC Roxy has been submitted.
Strengths
- Higher yield than CDC Maxim (similar to CDC Redbow)
- Improved resistance to Anthracnose vs. CDC Maxim
Neutral
- Similar maturity, flowering, lodging resistance, and resistance to Ascochyta Blight as CDC Maxim
Weaknesses
- Not tolerant to imidazolinone herbicides
Table 1: Agronomic Performance for Small Red Lentils from Co-op and Regional Trials in Saskatchewan
| VARIETY | HERBICIDE TOLERANCE | YEAR OF RELEASE | YEARS TESTED | YIELD % OF CDC MAXIM | DISEASE RESISTANCE | DAYS TO FLOWER | HEIGHT (CM) | MATURITY RATING | SEED WEIGHT (G/1000) | ||
| AREA 1-2* | AREA 3-4* | ASCOCHYTA | ANTHRACNOSE (RACE 1) | ||||||||
| CDC MAXIM | CL | 2007 | 12 | 100 | 100 | GOOD | GOOD | 51 | 34 | EARLY-MID | 40 |
| CDC IMPERIAL | CL | 2006 | 8 | 84 | 79 | GOOD | GOOD | 49 | 30 | EARLY | 30 |
| CDC IMPALA | CL | 2007 | 11 | 80 | 90 | GOOD | GOOD | 51 | 30 | EARLY | 31 |
| CDC IMP | CL | 2018 | 5 | 95 | 98 | GOOD | GOOD | 52 | 35 | EARLY-MID | 30 |
| CDC REDBOW | NO | 2009 | 7 | 102 | 99 | GOOD | GOOD | 49 | 30 | EARLY | 32 |
| CDC ROSEBUD | NO | 2009 | 7 | 100 | 99 | GOOD | GOOD | 50 | 30 | EARLY | 31 |
| CDC ROSIE | NO | 2012 | 8 | 92 | 90 | GOOD | GOOD | 52 | 33 | EARLY-MID | 30 |
| CDC ROXY | NO | 2014 | 8 | 102 | 98 | GOOD | GOOD | 53 | 34 | EARLY-MID | 32 |
Source: Varieties of Grain Crops (SaskSeed Guide)
*Area 1: Brown soil zone; Area 2: Dark brown; Area 3: Black; Area 4: Dark grey
Table 2: Two Year Disease Summary for CDC Roxy vs. CDC Maxim
| VARIETY | ASCOCHYTA BLIGHT (%) | ANTHRACNOSE | ||||
| 2011 INDOOR TEST | 2012 INDOOR TEST | 2011 INDOOR TEST (0 – 5 RATING) | 2012 INDOOR TESTING (0 – 10 RATING) | 2012 FIELD TEST (0 – 5 RATING) | ||
| TEST 1 | TEST 2 | |||||
| CDC MAXIM | 6.4 | 40.0 | 4.7 | 3.9 | 4.1 | 3.0 |
| CDC ROXY | 9.8 | 40.0 | 1.4 | 1.1 | 1.9 | 2.3 |
Source: CDC Pulse breeding group, U of S
*Anthracnose rating: where 0 = no disease
