Igorota (also known as PO3) is a high yielding potato cultivar with durable resistance to LB (Phytophthora infestans (Mont.) De Bary), resistance to PVY and PLRV, tolerant to heavy rain and good adaptation to growing conditions in the tropical highlands. Igorota is a result of intercrossing poorly adapted but highly LB resistant Solanum tuberosum ssp. Andigena clones obtained from the International Potato Center (CIP), Lima, Peru in 1986. Igorota is a seedling, selected at La Trindad, Benguet, the Philippines in 1988. Igorota, as second clonal generation rooted cuttings, was grown in an experiment with 46 other entries in 1989 in which it was the highest yielder with 26.5 tons/ha and showed high level of LB resistance. From the 3rd clonal generation, it was also evaluated by farmers, who soon saw its potential. Igorota has excellent vegetative growth, medium maturity in both the wet season and dry seasons. Igorota was officially registered in the Philippines in 1997 and in Vietnam in 2004. At present, Igorota covers around 70 % of the total highland potato production area of 11,000 ha in the Philippines and also 60 % of the total area of 1200 ha in Lamdong, Vietnam. Igorota continues to have durable resistance to LB in extremely high LB pressure environments. Igorota is conducive to rapid multiplication by apical shoot cutting farmer multipliers, who supply the demand for planting material in both countries.
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Chien, D. H., Ganga, Z. N., Simongo, D. K., Kiswa, C. G., Gonzales, I. C., Perez, J., ... VanderZaag, P. (2016). The adoption of cv. Igorota in the Philippines and Vietnam
. American Journal of Potato Research
(3), 296-301. https://doi.org/10.1007/s12230-016-9503-y