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Common bean rust, Bean golden yellow mosaic virus (BGYMV), Bean common mosaic virus (BCMV), and Bean common mosaic necrosis virus (BCMNV) are devastating diseases of dry bean (Phaseolus vulgaris L.) in Central America and the Caribbean. The development of dry bean cultivars with enhanced levels of genetic resistance to these and other diseases is an important goal of the University of Puerto Rico (UPR) and other dry bean breeding programs in Central America and the Caribbean. PR1572‐19 (Reg. no. GP‐308, PI 692976) and PR1572‐26 (Reg. no. GP‐307, PI 692975) are multiple virus‐ and rust‐resistant pinto bean germplasm lines adapted to the humid tropics that were developed and released cooperatively in 2019 by the UPR Agricultural Experiment Station, the Instituto Dominicano de Investigaciones Agropecuarias y Forestales, and the USDA–ARS. Both PR1572‐19 and PR1572‐26 possess the bgm‐1 gene for resistance to BGYMV, the I and bc‐3 loci that provide broad resistance to all strains of BCMV and BCMNV in the United States and the Caribbean, and the Ur‐3 and Ur‐11 loci that confer comprehensive resistance to all known races of the bean rust pathogen. PR1572‐26 also has the SW12 quantitative trait locus marker associated with resistance to BGYMV. PR1572‐19 and PR1572‐26 produced mean seed yields similar to the check cultivar 'Santa Fe' in trials conducted in Puerto Rico and mean seed yields comparable to the pinto cultivar 'La Paz' in the Cooperative Dry Bean Nursery conducted in Puerto Rico. Both lines should serve as useful sources of resistance to BGYMV, BCMV, BCMNV, and bean rust for common beans of the Durango race that includes the pinto and great northern market classes. [ABSTRACT FROM AUTHOR]

This article presents information on the registration of Carrizalito small red bean. Small red dry bean Carrizalito was developed at the Escuela Agricola Panamericana in Zamorano, Honduras, and released for Honduras in 2003 and Costa Rica in 2004, in collaboration with the National Bean Programs of Honduras and Costa Rica, and the University of Puerto Rico. Carrizalito is a high yielding, disease resistant cultivar, adapted to the midaltitude bean production regions of Central America. In 2004, Carrizalito was mechanically inoculated at the University of Puerto Rico with the NL3 strain of Bean common mosaic necrotic virus (BCMV) and found to have top necrosis caused by the presence of the dominant I gene for resistance to BCMV. Ashy stem blight is favored by warm dry conditions associated with drought stress. Seedlings of Carrizalito were inoculated in the greenhouse at the UPR with the ashy stem blight pathogen Macrophominaphaseolina and found to be resistant. Carrizalito has an indeterminate upright, Type III growth habit with a short vine. Carrizalito flowers in 35 to 37 d and matures in 68 to 70 d.