Registration of ‘Cayenne’ Small Red Bean

Abstract

‘Cayenne’ small red bean (Phaseolus vulgaris L.) (Reg. No. CV‐322, PI 685022), developed by Michigan State University AgBioResearch, was released in 2017 as an upright, full‐season cultivar that possesses excellent canning quality and tolerance to common bacterial blight (CBB) and white mold. Cayenne was developed using the pedigree breeding method to the F4 generation followed by pure line selection for disease, agronomic, and quality traits. In 5 yr of field trials, Cayenne yielded 3357 kg ha−1, flowered in 45 d, and matured in 97 d on average. Plants averaged 52 cm in height, with lodging resistance score of 1.8 and seed weight of 36.1 g 100 seed−1. Cayenne combines high yield potential with resistance to lodging and high pod placement within plant structure, making it suitable for direct harvest under narrow‐row production systems. The upright architecture also contributes to avoidance of white mold, a disease that is intensified by narrow‐row production systems. Cayenne is partially resistant to local isolates of CBB, is resistant to strain NL 3 of Bean common mosaic necrosis virus, but is susceptible to race 73 of anthracnose, and to race 22:2 of bean rust. Cayenne produces seed that meets industry standards for packaging and was rated highest in overall canned bean quality in the small red bean seed class.