Bibliographic citations
Bello, N., (2020). Respuesta de cinco genotipos de Cacao (Theobroma cacao L.) a cuatro dosis de Cadmio bajo condiciones de vivero en Chanchamayo [Universidad Nacional Agraria La Molina]. https://hdl.handle.net/20.500.12996/4566
Bello, N., Respuesta de cinco genotipos de Cacao (Theobroma cacao L.) a cuatro dosis de Cadmio bajo condiciones de vivero en Chanchamayo []. PE: Universidad Nacional Agraria La Molina; 2020. https://hdl.handle.net/20.500.12996/4566
@misc{sunedu/3013214,
title = "Respuesta de cinco genotipos de Cacao (Theobroma cacao L.) a cuatro dosis de Cadmio bajo condiciones de vivero en Chanchamayo",
author = "Bello Medina, Noel Ernesto",
publisher = "Universidad Nacional Agraria La Molina",
year = "2020"
}
This research was carried out with the objective of discovering the effect of different doses of cadmium on the behavior of five genotypes of Theobroma cacao L. under greenhouse conditions in San Ramón - Chanchamayo, central jungle of Peru. For this study, an experiment was carried out with 20 treatments (five cocoa genotypes: CCN-51, ICS-60, ICS95, POUND-7 and VRAE-99 with four doses of cadmium: 0, 50, 100 and 150 ppm). The source of cadmium used was cadmium sulfate (3CdSO4.8H2O), with 98.0% of Cd. The cocoa beans are from Cacao Germplasm Bank of the Instituto de Cultivos Tropicales (ICT) of Tarapoto (San Martín Region) and from INIA - Pichanaki experimental station, they were germinated in sand, then, they were pounded into bags with a substrate composed of soil from a cocoa plantation + sheep guano + sand (in a ratio of 3: 2: 1). Cadmium was applied in solution, prepared in deionized water and according to the previously determined doses. During the 165 days that the experiments lasted, three evaluations were made on the height, number of leaves, and stem diameter of the plant. At the end of the test, the fresh and dry weight of the aerial part (leaves + stems) and roots, also length of the root were evaluated (the longest one). In addition, the cadmium content in leaves and roots was analyzed; and also, residual cadmium in the substrate. The results showed that the genotypes studied had a variable response to the different doses of cadmium tested. There was no significant effect of the doses of cadmium in growth and the values reached in the variables evaluated correspond to the genetic potential of each genotype. POUND-7 was the most vigorous genotype. Cadmium absorption capacity varied from one genotype to another. ICS-95 absorbed more cadmium and ICS-60 much less. Generally, the highest concentration of this element occurred in the roots; but in no case, symptoms of phytotoxicity were observed. Furthermore, the residual available cadmium remained at a relatively high level.
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