Abstract
Cooperation-88 (C88) is a high yielding potato cultivar with durable resistance to Phytophthora infestans Mont. de Bary and excellent virus resistance. This has permitted the cultivar to rapidly increase its production area in Yunnan Province of China, as well as in neighboring provinces and countries. C88 is the result of a cross between I-1085, a clone from India selected for late blight (LB) resistance in Mexico and distributed by the International Potato Center (CIP), and a bulk pollen of a poorly adapted but highly LB resistant population with its origin in Solanum andigena from CIP Peru. C88 has excellent vegetative growth; it is late maturing under the long day summer growing season in Yunnan Province. It is much earlier maturing under the low elevation and warmer winter season of Yunnan. Experimental yields ranged from 23 to 55 t/ha, out-yielding the control cultivar Mira by 5% to 76%. Tuber quality is excellent, garnering a premium price in the markets. C88 has also become the preferred cultivar for the chipping potato industry, which uses medium-sized tubers, while the larger ones go for the fresh table market. Current estimates place the total area under production at 390,000 ha in Yunnan and its neighboring provinces, making C88 one of the most widely grown cultivars in the world today, less than 15 years after release.
Resumen
Cooperation-88 (C88) es una variedad de papa de alto rendimiento con resistencia durable a Phytophthora infestans Mont. de Bary y de excelente resistencia a virus. Esto le ha permitido un rápido incremento en el área de producción en la Provincia de Yunnan en China, así como también en provincias y países vecinos. C88 es el resultado de una cruza entre I-1085, un clon de la India seleccionado para resistencia al tizón tardío (TT) en México y distribuido por el Centro Internacional de la Papa (CIP), y polen masivo de una población de pobre adaptación, pero altamente resistente al TT, con su origen en Solanum andigena del CIP, en Perú. C88 tiene un excelente crecimiento vegetativo; es tardía bajo el ciclo de cultivo de día largo del verano en la Provincia de Yunnan. Es de madurez mucho más temprana en elevaciones bajas y en la estación de inviernos cálidos de Yunnan. Los rendimientos experimentales variaron de 23 a 55 t/ha, superando a la variedad testigo Mira por 5% a 76%. La calidad del tubérculo es excelente, mereciendo precios preferenciales en los mercados. C88 también se ha convertido en la variedad preferida para la industria del freído de la papa, que utiliza tubérculos de tamaño medio, mientras que los grandes van al mercado fresco. Las estimaciones actuales ubican al área bajo producción en 390,000 ha en Yunnan y en las provincias vecinas, haciendo de C88 una de las variedades más ampliamente sembradas en el mundo hoy, a menos de quince años de su liberación.
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Acknowledgements
The authors extend sincere thanks to He Tingfei (deceased) for doing the initial selection work in Huize. We also thank the colleagues from the Agricultural Technology Extension Stations of Yunnan, Guizhou and Guangxi provinces, and Xichang Agricultural Science Research Institute in Sichuan and Chongqing Potato Hi-tech Research Institute for their contributions in surveying the adoption of C88 in the corresponding provinces. Development of C88 was partially funded by the CIP-China collaborative program grant. Demonstration and promotional work in SW China was partially funded by the Commonwealth Specialized Research Fund of China Agriculture (3–20) and Yunnan Science and Technology Department (2008PY053).
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Li, C., Wang, J., Chien, D.H. et al. Cooperation-88: A High Yielding, Multi-Purpose, Late Blight Resistant Cultivar Growing in Southwest China. Am. J. Pot Res 88, 190–194 (2011). https://doi.org/10.1007/s12230-010-9174-z
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DOI: https://doi.org/10.1007/s12230-010-9174-z