Registration of ‘Adams’ black bean

Abstract

Abstract‘Adams’ black bean (Phaseolus vulgaris L.) (Reg. no. CV‐338, PI 695268), developed by Michigan State University AgBioResearch, was released in 2020 as a high‐yielding, upright, full‐season cultivar with anthracnose resistance and acceptable canning quality. Adams was developed using the pedigree breeding method to the F4 generation followed by pure line selection for disease, agronomic, and quality traits. In 2 yr of field trials at 27 locations, Adams yielded 3,501 kg ha−1, flowered in 45 d, and matured in 96 d on average. Plants averaged 51 cm in height, with a lodging resistance score of 1.3 and seed weight of 20.9 g per 100 seed. Adams has resistance to lodging, with 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. Adams is resistant to races 73 and 109 of anthracnose present in Michigan and produces a top necrosis reaction to strain NL 3 of Bean common mosaic necrosis virus. Adams produces seed that meets industry standards for export and packaging and was rated acceptable in canned bean color in the black bean seed class. The name Adams was chosen to honor Professor M. Wayne Adams, former bean breeder, for his significant contributions in archetype breeding and establishing the black bean breeding program at Michigan State University.