Objective:

To evaluate canola varieties for agronomic performance in environments and cropping systems representative of northwestern Montana. 

Results:

Significant differences were observed in plant density, flowering date, plant height, yield, percent oil, and test weight. Plants density averaged 15.5 plants/ft2 and ranged from 9.8 plants/ft2 for Cara to 20.4 plants/ft2 for InVigor L130. Flowering date averaged 169 days (June 18) and spanned a 5 day period that ranged from 166 to 171 days. Plant height averaged 47.7 inches and ranged from 41.8 inches for Arriba to 53.3 inches for InVigor 5440. Lodging averaged 11.6% however, no significant difference was observed among entries. Shatter was 0.0% for all varieties. Yields averaged 61.3 bu/A and ranged from 43.2 bu/A for Cara to 72.9 bu/A for InVigor 5440. Oil content averaged 50.4%, ranging from 46.8% for InVigor L130 to 54.8% for 6074RR and C1516. Test weights averaged 51.0 lb/bu and ranged from 48.5 lb/bu for HyClass 955 to 57.4 lb/bu for C1516.

Summary:

InVigor 5440 was the highest yielding variety and had an oil content of 49.5%. Based on the LSD value for yield at 12.4, 11 varieties were statistically equivalent to InVigor 5440.

Table 1. Materials and Methods - Canola Variety Trial, Kalispell, MT - 2015

Seeding Date: 4/21/2015 Harvest Date: 8/10/2015
Julian Date: 111 Julian Date: 222
Seeding Rate: 10 plants/ft2 6" rows Soil Type: Creston SiL
Previous Crop: Spring Wheat Soil Test: 61-8-180-62
Tillage: Conventional Fertilizer: 125-35-35-20
Irrigation: None Insecticide: Warrior II 1.92 oz/A
Herbicide:  Stinger 8 oz/A Fungicide: Quadris 6 oz/A

Table 2. Agronomic Data from the statewide canola variety trial, Kalispell, MT - 2015

Variety PLNT sqft FLWR Julian HT in. LOD % SHTTR YLD bu/A1 OIL %1 TWT lb/bu1 MC %
InVigor 5440 16.9 169 53.3 14.3 0.0 72.9 49.5 51.0 12.5
HyClass 930 14.3 166 46.8 7.3 0.0 71.3 49.3 48.7 7.8
DKL 70-07 16.3 168 48.5 9.3 0.0 68.6 49.4 48.9 8.3
HyClass 955 16.8 167 46.3 8.3 0.0 68.4 49.3 48.5 7.3
InVigor L252 15.2 169 48.8 9.5 0.0 68.3 54.7 51.8 15.0
G49720 17.0 169 45.8 16.3 0.0 66.0 49.9 49.7 10.4
DKL 70-10 16.7 169 49.8 6.3 0.0 65.1 47.1 49.5 9.1
DKL 38-48 13.5 167 44.5 10.0 0.0 64.8 49.1 49.8 9.2
6044RR 16.6 170 49.8 13.8 0.0 64.6 52.4 52.7 16.0
InVigor L140P 19.0 169 48.3 13.0 0.0 64.1 47.7 49.4 9.7
HyClass 970 12.7 169 47.0 14.3 0.0 64.0 52.9 51.5 15.5
G28101 16.0 169 47.0 15.3 0.0 61.6 49.1 49.2 7.3
InVigor L130 20.4 169 50.3 7.0 0.0 59.7 46.8 49.1 7.8
Arriba 17.5 168 41.8 8.8 0.0 55.5 47.7 49.5 7.8
DKL 70-50CR 16.3 168 44.8 15.0 0.0 54.6 52.3 50.3 12.3
C1511 14.0 169 50.0 13.0 0.0 53.9 50.0 54.4 20.5
6074RR 12.2 171 49.5 10.0 0.0 50.4 54.8 56.6 24.8
C1516 12.7 171 51.5 15.0 0.0 47.3 54.8 57.4 25.0
Cara 9.8 169 45.8 14.3 0.0 43.2 50.4 51.0 12.8
Mean 15.5 169 47.7 11.6 0.0 61.3 50.4 51.0 12.6
CV 19.7 0.5 7.0 60.5 0.0 14.3 3.6 1.7 15.6
LSD 4.3 1.2 4.7 ns ns 12.4 2.6 1.2 2.8
Pr>F 0.0016 0.0001 0.0029 0.6236 1 0.0001 0.0001 0.0001 0.0001

PLNT: plant; FLWR: 50% flowering; HT: height; LOD: lodging; SHTTR: shatter; YLD: yield; TWT: test weight; MC: moisture content; ns: non-significant

1adjusted to 8% moisture.