En Mayo 2003 se instalaron cuatro plantaciones de uña de gato Uncaria tomentosa (Willd) D.C a lo largo de la Cuenca del Río Aguaytia en Ucayali Perú. Las plantas correspondieron al clon 11, propagadas in vitro, y procedentes del Instituto de Biotecnología (IBT) de la Universidad Nacional Agraria La Molina (UNALM). El estudio se basó en la determinación de la influencia edáfica en la producción de biomasa de esta especie como cultivo. Las áreas experimentales se encuentran a diferentes niveles altitudinales desde los 136 hasta los 884 msnm. En Junio 2005 se realizó la primera poda y el muestreo de suelos a dos profundidades, de 0 a 15 y de 15 a 30 cm del suelo.La textura arcillosa en los suelos fueron las que correlacionaron mejor con la producción de la biomasa del clon; siendo las ecuaciones más representativas: a) Biomasa = 27.329(% Arena) - 51.875 y b) Biomasa = -3...

Cat's claw (Uncaria tomentosa Willd. ex D.C.), Rubiaceae family, is a vine which is used, traditional and commercially, the crust in several towns in the Peruvian Amazon and other parts of South America: because of their actions antiinflammatory, antimicrobial, immunostimulatory, antioxidant, etc. This study aimed to quantify total polyphenols present in the leaves of "cat's claw" Uncaria tomentosa from the same clone set in three locations from Ucayali. The botanical material was collected in November 2009, in Tres de Octubre, El Porvenir and Nuevo Ucayali, covering the districts of Padre Abad Province Irazola and Coronel Portillo, Ucayali department. With the leaf samples was extracted by percolation method using as solvent an alcohol solution in a 1:25 ratio and solvent leaves. The extracts obtained were

The work was developed in the plot Y1 of Institute of Amazonian Research Peruana-IIAP Ucayali, located between latitudes 8 º 22 '31''south latitude and 74 º 34' 35'' west longitude and altitude of 154 m. It has a soil with low fertility Ultisols (organic matter 1.4%, phosphorus 0.4ppm, potassium 25ppm, pH 4.58, high aluminum content of 6 meq/100 g and CIC of 6.72 meq/100 g of soil). The objective was to determine the phenology and fruit yield candid plant of camu camu of 7 years of age from a mixture of seeds, using 5 treatments by the technique of fertigation through a drip irrigation system (RG). We used a randomized complete block design (RCBD) with 3 replications of 5 treatments and 15 experimental units with 15 floors each, the treatments were T0 [Without irrigation and fertilization], T1 [Drip irrigation without fertilization], T2 [60-40-80/NPK more RG], T3 [120-80-160/NPK more R...

The work was developed in the plot Y1 of Institute of Amazonian Research Peruana-IIAP Ucayali, located between latitudes 8 º 22 '31''south latitude and 74 º 34' 35'' west longitude and altitude of 154 m. It has a soil with low fertility Ultisols (organic matter 1.4%, phosphorus 0.4ppm, potassium 25ppm, pH 4.58, high aluminum content of 6 meq/100 g and CIC of 6.72 meq/100 g of soil). The objective was to determine the phenology and fruit yield candid plant of camu camu of 7 years of age from a mixture of seeds, using 5 treatments by the technique of fertigation through a drip irrigation system (RG). We used a randomized complete block design (RCBD) with 3 replications of 5 treatments and 15 experimental units with 15 floors each, the treatments were T0 [Without irrigation and fertilization], T1 [Drip irrigation without fertilization], T2 [60-40-80/NPK more RG], T3 [120-80-160/NPK more R...