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Revista mexicana de ciencias agrícolas

versión impresa ISSN 2007-0934


IBARRA-PEREZ, Francisco Javier et al. Rubí: a new improved variety of black beans for the tropical areas of Veracruz and Chiapas. Rev. Mex. Cienc. Agríc [online]. 2022, vol.13, n.3, pp.577-585.  Epub 08-Ago-2022. ISSN 2007-0934.

In Veracruz and Chiapas, Mexico, bean cultivation is mainly affected by the incidence of viral diseases, the occurrence of terminal drought in residual moisture sowings and low-fertility acidic soils. To help solve this problem, the bean variety ‘Rubí’ was developed. In 2015, the Jamapa Plus/XRAV-187-3-1-8 line, which gave rise to the Rubí variety, along with 49 other lines and 20 black bean varieties were screened by artificial inoculation and the use of molecular markers, to determine their resistance to bean common mosaic virus (BCMV), bean common mosaic necrosis virus (BCMNV) and bean golden yellow mosaic virus (BGYMV), in said study, Rubí showed resistance to BCMV and low incidence of BGYMV. During 2015 and 2016, Rubí was evaluated together with two regional controls in an adaptation nursery in six environments of Veracruz and Chiapas, to determine its productive response, under rainfed, residual moisture, irrigation and terminal drought conditions. In four of the six environments, Rubí was superior in yield to the two regional controls, with an overall average of 10.3 and 18.1% higher than that obtained for the Negro Comapa and Negro Grijalva varieties, respectively. During 2016 and 2017, Rubí was evaluated in a uniform yield trial in 10 environments in Veracruz and Chiapas. The new variety obtained a significantly outstanding average yield and showed better adaptation than Negro Comapa and Negro Grijalva. In 2019, the National Seed Inspection and Certification Service (SNICS) granted the definitive registration in the National Catalogue of Plant Varieties, with number FRI-099-06119, for its commercial use.

Palabras llave : Phaseolus vulgaris L.; adaptability; cultivar; GxA; yield..

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