Registration of 'Eldorado' Pinto Bean

'Eldorado' (Reg. No. CV-302, PI 665012) pinto bean (Phaseolus vulgaris L.), which was developed by Michigan State University AgBioResearch, was released in 2012 as an upright, full-season, disease-resistant cultivar. Eldorado, tested as MSU breeding line P07863, was developed using the single-seed-descent breeding method to the F-4 generation followed by pedigree selection for disease, agronomic, and quality traits. In 5 yr of field trials, Eldorado yielded 3364 kg ha(-1), flowered in 42 d, and matured in 98 d. Plants averaged 53 cm in height, with a lodging-resistance score of 1.9 and a seed size of 43 g 100 seed(-1). Eldorado combines exceptional yield potential and erect architecture with full-season maturity in the pinto seed type. Eldorado has resistance to lodging and high pod placement within the plant structure, making it suitable for direct harvest under narrow-row production systems. The upright architecture also contributes to avoidance of white mold [caused by Sclerotinia sclerotiorum (Lib.) de Bary], a disease intensified by narrow-row production systems. In irrigated trials designed to promote the development of white mold disease, Eldorado had 30% incidence over 5 yr compared with other pinto cultivars that had from 42 to 72% white mold incidence. Eldorado possesses resistance to specific races of rust, virus, and anthracnose. Eldorado has a large, mottled, dry-bean seed that meets industry standards for packaging and canning quality in the pinto bean seed class.