Objective:
To evaluate canola varieties for agronomic performance in environments and cropping systems representative of northwestern Montana.
Results:
Twenty-five cultivars were evaluated using a randomized complete block with four replications. Seeding rate was determined using the following equation:
(10 plants/sqft X 9.6 X thousand kernel weight)/ 80% survival.
Significant differences were observed in flowering date, plant height, percent lodging, yield, percent oil, and test weight. Flowering date averaged 180 days (June 28) and spanned a 4 day period that ranged from 177 to 181 days. Plant height averaged 52.1 inches and ranged from 45.7 inches for Arriba to 57.8 inches for InVigor 5440. Lodging averaged 25.2% ranging from 2.8% for C1516 to 55.0% for Arriba. Yields averaged 41.5 bu/A and ranged from 25.0 bu/A for Arriba to 56.6 bu/A for HyClass 972. Oil content averaged 49.3%, ranging from 46.1% for NCH13G046 to 50.9% for HyClass 970. Test weights averaged 49.4 lb/bu and ranged from 47.7 lb/bu for C5522 to 51.1 lb/bu for NCH13G046.
Summary:
HyClass 972 was the highest yielding variety and had an oil content of 49.6 percent. Based on the LSD value for yield, 3 varieties (InVigor L130, InVigor L140P, and G49720) were statistically equivalent to the highest yielding variety, HyClass 972.
Table 1. Materials and Methods |
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|---|---|---|---|
| Seeding Date: | 5/3/2016 | Harvest Date: | 9/14/2016 |
| Julian Date: | 124 | Julian Date: | 258 |
| Seeding Rate: | 10 plnt/sqft 6" rows | Soil Type: | Creston SiL |
| Previous Crop: | Barley | Soil Test: | 116-22-250-46 |
| Tillage: | Conventional | Fertilizer: | 125-30-30-20 |
| Herbicide: | PPI: Trust 2 pt/A | Insecticide: | Warrior II 1.92floz/A |
| Herbicide: | Post: Stinger 1/3pt/A | Fungicide: | Endura 6 oz/A |
Table 2. Agronomic data from the statewide canola variety trial |
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|---|---|---|---|---|---|---|---|---|---|
| Cultivar | Herbicide | PLNT | FLWR | HT | LOD | SHTTR | YLD | OIL | TWT |
| System | sqft | Julian | in | % | % | bu/A | % | lb/bu | |
| HyClass 972 | RR | 14.9 | 180 | 53.3 | 5.8 | 1.0 | 56.6 | 49.6 | 50.2 |
| InVigor L130 | LL | 10.5 | 180 | 55.3 | 7.8 | 1.0 | 52.6 | 49.1 | 49.6 |
| InVigor L140P | LL | 14.1 | 180 | 50.7 | 25.5 | 1.0 | 51.2 | 49.1 | 48.9 |
| G49720 | RR | 16.3 | 180 | 50.1 | 30.5 | 1.0 | 49.8 | 48.7 | 49.6 |
| InVigor 5440 | LL | 17.3 | 180 | 57.8 | 10.0 | 1.0 | 47.1 | 49.1 | 50.0 |
| G35153 | RR | 10.6 | 179 | 49.4 | 37.5 | 1.0 | 46.5 | 49.2 | 49.4 |
| HyClass970 | RR | 14.3 | 180 | 51.7 | 17.0 | 1.0 | 45.6 | 50.9 | 49.0 |
| C1511 | SU | 12.7 | 180 | 51.9 | 14.3 | 1.0 | 45.0 | 48.5 | 49.0 |
| C1516 | SU | 13.3 | 181 | 55.7 | 2.8 | 1.3 | 44.1 | 47.9 | 50.6 |
| C5507 | SU | 16.7 | 180 | 54.2 | 20.0 | 1.0 | 43.9 | 50.0 | 48.0 |
| DKL70-10 | RR | 15.3 | 180 | 51.6 | 31.3 | 1.0 | 43.6 | 49.9 | 49.0 |
| HyClass 930 | RR | 15.2 | 179 | 49.3 | 36.3 | 1.0 | 43.5 | 50.5 | 48.9 |
| HyClass 955 | RR | 16.7 | 179 | 47.4 | 31.3 | 1.0 | 43.3 | 49.8 | 49.3 |
| C5522 | SU | 15.1 | 180 | 55.6 | 12.5 | 1.0 | 42.9 | 50.7 | 47.7 |
| BY16-768 | RR | 13.9 | 180 | 54.6 | 8.8 | 1.0 | 41.7 | 50.1 | 48.1 |
| 6080 RR | RR | 15.2 | 180 | 54.4 | 13.8 | 1.0 | 40.3 | 49.9 | 49.0 |
| 6074 RR | RR | 15.7 | 180 | 54.5 | 12.5 | 1.5 | 38.9 | 50.1 | 49.9 |
| G49773 | RR | 14.8 | 180 | 51.1 | 47.5 | 1.0 | 37.1 | 50.1 | 49.4 |
| GT50 | RR | 19.3 | 180 | 49.7 | 16.8 | 1.0 | 35.7 | 48.0 | 50.3 |
| Empire | none | 15.5 | 179 | 50.2 | 41.3 | 1.0 | 35.5 | 48.1 | 50.1 |
| NCH13G046 | RR | 13.8 | 180 | 49.9 | 52.5 | 1.0 | 34.6 | 46.1 | 51.1 |
| DKL30-20 | RR | 15.9 | 177 | 52.0 | 41.3 | 2.3 | 31.3 | 50.7 | 49.4 |
| Cara | none | 13.4 | 180 | 51.5 | 40.0 | 1.0 | 31.0 | 48.1 | 49.5 |
| C5513 | SU | 16.1 | 181 | 56.0 | 18.8 | 1.0 | 30.3 | 49.9 | 49.8 |
| Arriba | none | 15.7 | 179 | 45.7 | 55.0 | 1.0 | 25.0 | 48.0 | 49.7 |
| Mean | 14.9 | 180 | 52.1 | 25.2 | 1.1 | 41.5 | 49.3 | 49.4 | |
| CV | 25.2 | 0.2 | 6.5 | 52.9 | 40.3 | 15.8 | 2.6 | 0.9 | |
| LSD | ns | 0.6 | 4.8 | 16.6 | ns | 9.3 | 1.8 | 0.6 | |
| Pr>F | 0.4287 | 0.0001 | 0.0002 | 0.0001 | 0.0923 | 0.0001 | 0.0001 | 0.0001 | |
| PLNT: plant, FLWR: 50% flowering, HT: height, LOD: lodging, SHTTR: shatter, YLD: yield, TWT: test weight, ns: nonsignificant. | |||||||||
| adjusted to 8% moisture. | |||||||||
| RR: roundup ready, LL liberty link, SU: sulfonylurea. | |||||||||