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According to the latest molecular, taxonomic studies, the origin and domestication of the cultivated potato (Solanum tuberosum) took place in the Andean highlands of Peru, probably in a region including the current departments of Huanuco, Cerro De Pasco, Junín, Huancavelica, Apurimac, Ayacucho, Cuzco and Puno. However, it seems that potatoes were first extensively cultivated in the circum-Titi ...

SUBJECT: historia; procedencia; potatoes; taxonomie; taxonomy

POSTED TO: Revista Latinoamericana de la Papa [1019-6609]

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The objective of the present research was to characterize 34 clones and varieties of potato of the Europe and Latin-American origin by their resistance to late blight (Phytophthora infestans) and culinary properties under field and laboratory conditions during three years. The genotypes India (check), Chota Ñawi, Cordillera, Robusta, Jaspe and Yema de huevo showed high resistance levels on fie ...

SUBJECT: potatoes; resistance aux maladies; genotypes; variete; enfermedades de las plantas

POSTED TO: Revista Latinoamericana de la Papa [1019-6609]

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In the Experimental Farming Condoriri Center in Oruro, with the objective of morphological study the mechanisms associated with resistance to frost in 82 accessions of Solanum andigena, S. stenotonum and S. x juzepczukii species. It was tested the yield and the morphologic factors that contribute to the resistance to frosts as stem pigmentation, size of stomatics cells, thickness of cellular w ...

SUBJECT: plante sauvage; potatoes; solanum tuberosum; taxonomy; plant genetic resources

POSTED TO: Revista Latinoamericana de la Papa [1019-6609]

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French fries of the varieties Frital INTA, Kennebec, Spunta and Shepody were sensory characterized with quantitative descriptive analysis. The descriptors used were length and firmness of sticks, external color, hardness, crunchiness, mealiness, moistness, graininess and oil residual. The descriptors were quantified with scales not structured anchored in the ends. Analysis of variance of one f ...

SUBJECT: traitement; potatoes; foods; procesamiento; produit alimentaire

POSTED TO: Revista Latinoamericana de la Papa [1019-6609]

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The new cultivar UNICA is advantageous over existing cultivars for warm areas, was developed by the Germplasm Enhancement and Crop Improvement Division of the International Potato Center (CIP), with the support of national partner, the National University San Luis Gonzaga, Ica, Peru. Its recent registration in the National Register of Commercial Cultivars in the National Plant Health Service ( ...

SUBJECT: potatoes; varieties; pomme de terre; papa; variedades

POSTED TO: Revista Latinoamericana de la Papa [1019-6609]

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This research was carried out in two localities of Nariño: (Obonuco y Jamondino). The objective was to evaluate the effect of the application of different doses of phosphorus and potassium on the tubers yield and the specific gravity of the potato cultivar Criolla Guaneña. The randomized complete blocks design was used with three repetitions and factorial structure 5x2, where the first factor ...

SUBJECT: potatoes; aplicacion de abonos; papa criolla; fisiologia vegetal; fertilizer application

POSTED TO: Revista Latinoamericana de la Papa [1019-6609]

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One of the most important technological advances of potato in Latín America in the last decades has been the development of methods for multiplication of high quality potato seed. During the eighties the International Potato Center (CIP) generated and intensively diffused among the national agricultura! research systems (NARS) the techniques for rapid multiplication and pathogen testing of clo ...

SUBJECT: potatoes; semilla; production; seeds; multiplication des plantes

POSTED TO: Revista Latinoamericana de la Papa [1019-6609]

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The use of augmented designs in phases of plant breeding programs is a valuable tool for the selection decisions, but as a rule very little of these methods are implemented in those programs. When they are used, it is common to select the genotypes that are evaluated, as equal or superior to the best, to the worst, or to the average of the controls utilized. In this study, an analysis using th ...

SUBJECT: potatoes; diseno experimental; methode statistique; solanum tuberosum; plant breeding

POSTED TO: Revista Latinoamericana de la Papa [1019-6609]

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Research for determining the Most appropriate time to apply the Sencor (Metribuzin) herbicide' and to select ' new herbicide alternatives' was conducted in two consecutive growing seasons (1993-94 and 1994-95) at Toralapa Experimental Station to control Spergula arvensis in potato crops. To achieve the first objective, the following treatments were performed during the first season: pre-emerge ...

SUBJECT: diuron; potatoes; trifluraline; trifluralin; metribuzin

POSTED TO: Revista Latinoamericana de la Papa [1019-6609]

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The present study was conducted with the objective to estímate the most effective intervals of applications of the fungicide Chlorothalonil 82.5 for the management of the fungus P. infestans, in the rainy season. This test was carried out in the farm of a producer in the locality of Cerro Punta in the period August to December 1998. The statistical design utilized was split plots with a random ...

SUBJECT: pesticide resistance; potatoes; fongicide; resistencia a los plaguicidas; solanum tuberosum

POSTED TO: Revista Latinoamericana de la Papa [1019-6609]

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