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Susceptibility of Solanum phureja (Juz. et Buk.) to Potato yellow vein virus

Susceptibility of Solanum phureja (Juz. et Buk.) to potato yellow vein virus

EXPRESIóN GUS EN EXPLANTES DE Solanum phureja (Juz. et. Buk) Var. Criolla Colombia , TRANSFORMADOS CON Agrobacterium tumefaciens

Identificación y análisis de la variabilidad morfológica de 59 cultivares de papa criolla (Solanum phureja Juz. et Buk.) Identification and morphological variability analysis of 59 creole potato cultivars (Solanum phureja Juz. el Buk.)

EXPRESIóN GUS EN EXPLANTES DE Solanum phureja (Juz. et. Buk) Var. Criolla Colombia, TRANSFORMADOS CON Agrobacterium tumefaciens

Caracterización Citogenética de Cinco Genotipos de Papa Criolla, Solanum phureja (Juz. et Buk.) Cytogenetic Characterization of Five "Criolla" Potato Genotypes, Solanum phureja (Juz. et Buk.)

Evaluación de la densidad de siembra y el tama o del tubérculo semilla en la producción de semilla básica de papa criolla, variedad yema de huevo (Solanum phureja Juz. et Buk.) Effect of plant density and tuber-seed size in basic seed production of creole potato yema de huevo cultivars (Solanum phureja luz. el Buk.)

Interrelación entre la densidad de tallos y la tasa de multiplicación de tubérculos en papa criolla (solanum phureja juz. et buk) variedad "yema de huevo" Interrelationship among the stem density and the multiplication rate in the diploid potato variety "yema de huevo" (Solanum phureja Juz. et Buk)

The Potato Late Blight Caused by <i>Phytophthora infestans</i> Mont de Bary as Selection Factor of Phurejas Potatoes (<i>Solanum phureja</i> Juz et Buk) in Endemic Areas of the Bolivian Andes


Comparación cuantitativa de ácido abscísico y citoquininas en la tuberización de Solanum tuberosum L. y Solanum phureja Juz. et Buk.

Keywords: phytoregulators, potato, hplc.

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of all 30 potato varieties cultivated in colombia only 10 possess a commercial importance. among other factors, this number is limited by the action of endogenous hormones that accelerate different phases of tuberization process, especially in the earliest species. in this work, the samples of tubers from different potato species solanum tuberosum l. vars. ica-unica, tuquerre?a and solanum phureja juz. et buk. var. yema de huevo were collected at the phenological stages of development 03, 10 and 40. later, the concentrations of abscisic acid in the acid fraction and ones of cytokinins in the organic fraction of the extracts were determined by high performance liquid chromatography. the results in studied varieties show a relationship between the early tuberization and aba absence, while the periods of deep latency were related with aba presence; otherwise, the cytokinin levels were high in the varieties with early tuberization. that is to say, it was found in s. phureja juz. et buk. var. yema de huevo, characterized by early tuberization, low aba concentrations and considerable levels of cytokinins, whereas, in varieties with periods of prolonged latency, such as ica-unica and, especially, tuquerre?a, aba concentrations were considerable, but those of cytokinin not.


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