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 |
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|---|---|---|---|
| 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 |
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|---|---|---|---|---|---|---|---|---|---|
| Variety | PLNT | FLWR | HT | LOD | SHTTR | YLD¹ | OIL¹ | TWT¹ |
MC |
| sqft | Julian | in | % | % | bu/A | % | lb/bu | % | |
| 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 | 47.3 | 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 | 55.0 | 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: nonsignificant, YLD: yield, TWT: test weight | |||||||||
| ¹adjusted to 8% moisture | |||||||||