NDOLA-2, a high-yielding, open-pollinated conventional spring type canola in North Dakota

NDOLA-2 (Reg. no. GP-9, PI 698655) is an open-pollinated, non-genetically modified, spring-type canola (Brassica napus L.) developed at North Dakota State University (NDSU) and approved for specialty release by the North Dakota Agricultural Experiment Station. NDOLA-2 was tested as experimental line NDC-E16198 from 2017 to 2020 (16 location-years) in NDSU canola breeding nurseries and in 2019 and 2020 (8 location-years) in North Dakota Canola Variety Trials (ND-CVTs). NDOLA-2 has been identified as a germplasm with higher seed yield potential and disease tolerance. NDOLA-2 had 5.5% higher seed yield and 2.1% lower oil contents compared with those of commercial hybrid checks in NDSU canola breeding trials. Also, NDOLA-2 had 5.4% higher seed yield and 1.6% lower oil content over the means of commercial cultivars/hybrids in ND-CVTs. It has been identified as resistant to blackleg disease (Pathogenicity Group 4) and Sclerotinia stem rot disease of canola. NDOLA-2 flowers within 44 d from seeding, has a flowering period that lasts 22 d, and reaches maturity within 93 d from seeding with plants that are 103 cm tall. It is resistant to lodging, with a score of 2.1 out of 9, and has an overall breeder score of 8.0, where the trial mean score for all locations was 7.7.