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'Lariat' (Reg. No. CV-293, PI 654383) and 'Stampede' (Reg. No. CV-292, PI 654382) are two new high-yielding pinto bean (Phaseolus vulgaris L.) cultivars adapted to the northern Great Plains. These cultivars were developed by North Dakota State University and released by the North Dakota Agricultural Experiment Station in 2007. Both cultivars have commercially acceptable visual seed traits (size, shape, and appearance). Both Lariat and Stampede growth habit is Type llb (upright, short vine), and both possess high lodging resistance. Both lines exhibit good and synchronous plant dry-down before harvest (both plant and pods mature concurrently). Multilocation testing across more than 30 environments has shown their superior performance compared with commercial cultivars commonly grown in the region. Lariat and Stampede are both significantly superior in seed yield to 'Maverick' pinto bean (the main pinto cultivar grown in the region), and similar to 'Buster' pinto bean, one of the highest seed yielding cultivars commercially available. The improved plant structure, combined with its synchronous dry-down, suggests that these lines could be suitable for direct harvest, given appropriate equipment, field conditions, and operator care. Both lines are resistant to bean common mosaic virus (BCMV) and bean rust [caused by Uromyces appendiculatus (Pers.) Unger]. These cultivars represent new and better alternatives for pinto bean growers of the northern Great Plains. |
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