Abstract
Resistance to several pathological and physiological tuber defects has been correlated with calcium level in the peel. In this study, a representative sample of potato species (including cultivated), was grown in the greenhouse. Plants were watered with low and high calcium solutions, and the resulting tubers analyzed. Thus, potato germplasm was screened for ability to accumulate tuber calcium when a control level of calcium is available, and ability to respond when higher levels are supplied. Some wild species significantly exceeded cultivated materials in one or both of these measures. Such species may provide a resource for breeding varieties which are more efficient calcium accumulators.
Compendio
La resistencia a varios defectos patológicos y fisiológicos de los tubérculos han sido correlacionados con el nivel de calcio en la piel. En este estudio, una muestra representativa de especies de papa (incluyendo a las cultivadas), se mantuvo en el invernadero. Las plantas fueron regadas con soluciones de baja y alta concentración de calcio y se analizaron los tubérculos obtenidos. Así, el germoplasma de papa fue evaluado y selecionado para capacidad de acumulación de calcio en los tubérculos cuando se dispone de un nivel de control del calcio y capacidad para responder cuando se proveen nivelés más altos. Algunas especies silvestres excedieron significativamente a los materiales cultivados en una o ambas de estas medidas. Tales especies pueden proporcionar un recurso para el mejoramiento de variedades que son acumuladoras más eficientes de calcio.
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This research was partially supported by the Wisconsin Fertilizer Research Council. Trade names are used for identification and do not imply an endorsement of products, or recommendation over similar brands.
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Bamberg, J.B., Palta, J.P., Peterson, L.A. et al. Screening tuber-bearingSolanum (potato) germplasm for efficient accumulation of tuber calcium. American Potato Journal 70, 219–226 (1993). https://doi.org/10.1007/BF02849310
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DOI: https://doi.org/10.1007/BF02849310