Registration of ‘Denali’ white kidney bean

Abstract

‘Denali’ (Reg. no. CV-360, PI 705152) white kidney bean (Phaseolus vulgaris L.), developed by Michigan State University AgBioResearch, was released in 2022 as a midseason, disease-resistant, bush bean cultivar with uniform dry down. Denali was developed with the pedigree breeding method to the F₄ generation followed by pure line selection for disease, agronomic, and quality traits. In 8 years of field trials across Michigan, Denali yielded 3500 kg ha⁻¹, flowered in 37 d, and matured in 97days on average. Plants averaged 46 cm in height, with a lodging resistance score of 1.3 and seed size of 62 g 100 seed⁻¹. Denali combines high yield potential with midseason maturity in a white kidney seed type. Denali outyielded ‘Beluga’ by 13% years and matured 5 days earlier. It is well adapted to the irrigated production systems on coarse-textured soils where kidney beans are typically grown in Michigan and the Upper Midwest. Denali is resistant to Bean common mosaic virus and exhibits significantly higher levels of tolerance to root rot than ‘ND Whitetail’. Tolerance to common bacterial blight and white mold exhibited by Denali is comparable with ND Whitetail, ‘Yeti’, and ‘Snowdon’. Denali is susceptible to anthracnose. Seed size of Denali (0.62 g) is slightly smaller than Snowdon (0.69 g) and equivalent to seed produced by other white kidney bean cultivars. Seed of Denali meets industry standards for packaging and canning quality in the white kidney bean seed class.