Abstract
Two potato breeding selections were released by the United States Department of Agriculture, Agricultural Research Service on November 14, 1996, as germplasm that is highly resistant to current populations ofPhytophthora infestans (Mont.) deBary, the causal organism of potato late blight: B0718-3 and B0767-2. These two clones have been evaluated for their reaction toP. infestans in replicated plots at Presque Isle, Maine since 1990. B0718-3 is a netted white-skinned selection with good yields but low specific gravity. It is both male and female fertile and crosses readily with tetraploid Tuberosum. B0767-2 is a russet-skinned selection that is low yielding and low in specific gravity. It has not been successfully crossed; however, it may have some potential use in somatic hybridizations. Neither B0718-3 nor B0767-2 process into acceptable colored chips. Genetic material of this release has been deposited in the National Plant Germplasm System where it is available for research purposes, including development and commercialization of new cultivars.
Compendio
El 14 de noviembre de 1996, el Servicio de Investigación Agrícola del Departamento de Agriculture de los Estados Unidos liberó dos selecciones mejoradas de papa (B07183 YB077-2) como germoplasma que es altamente resistente a las poblaciones actuales dePhytophthora infestans (Mont.) de Bary, el organismo causal del tizón tardío de la papa. Estos dos clones han sido evaluados para su reacción a P.infestans en parcelas replicadas en Presque Isle, Maine, desde 1990. B0718-3 es una selecci⤵ de piel blanca con buen rendimiento pero con baja gravedad específica. Es fértil tanto para el macho como para la hembra y se cruza facilmente con Tuberosum tetraploide. B0767-2 es una selección de piel rojiza de bajo rendimiento y baja gravedad especcífica. No ha sido cruzada con éxito; sin embargo, tiene cierto potential en hibridaciones somáticas. Ni B0718-3 ni B0767-2 se procesan en hojuelas de colores aceptables. El material genético de esta liberación ha sido depositado en el Sistema Nacional de Germoplasma de Plantas donde se encuentra disponible para fines de investigación, incluyendo el desarrollo y comercialización de nuevos cultivares.
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Goth, R.W., Haynes, K.G. The germplasm release of B0718-3 and B0767-2: Two late blight resistant potato clones. American Potato Journal 74, 337–345 (1997). https://doi.org/10.1007/BF02851578
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DOI: https://doi.org/10.1007/BF02851578