The aim of the study was to evaluate the effects of soil amendment with compost, obtained by the organic fraction of solid urban wastes, in comparison with traditional chemical fertilization practices on potato (Solanum tuberosum L.) crop. Seven genetically biodiverse cultivars (Cvs - King Edward, Pentland Dell, Maris Piper, Wilja, Kingston, Spunta, Red Pontiac) were employed to establish an experimental field in southern Italy. The field was subdivided into two portions (about 1000 m2 each): one was amended with compost at 20 tons per hectare, while the other one was supplemented with ammonium sulphate at 200 Kg per hectare. Element concentrations, productivity and organoleptic characteristics were evaluated, at the end of the experiment, in potato tubers of all Cvs obtained from both kinds of fertilised soil. cDNA-AFLP and MSAP analyses were performed on leaves and tubers collected from Red Pontiac Cv, to estimate if any transcriptome or epigenetic modifications, due to different kinds of fertilization, were induced. Mineral fertilization and compost amendment did not cause any significant modification in transcriptome and in epigenome profiles in both analyzed organs, as well as in the productivity, organoleptic characteristics, nutrients and trace elements in tubers. Only for K, the tubers grown on compost amended soil showed, on average, a higher K concentration in respect to those grown on mineral fertilised soil. In conclusion, potato tubers, produced by means of different soil fertilizations, show similar characteristics in terms of productivity, quality and nutraceutical properties.

Potato cultivars grown on an agricultural soil under compost amendment or mineral fertilization: productivity, quality and genetic/epigenetic variations in tubers

CICATELLI, ANGELA;BALDANTONI, Daniela;IOVIENO, PAOLA;ALFANI, Anna;CASTIGLIONE, STEFANO
2013-01-01

Abstract

The aim of the study was to evaluate the effects of soil amendment with compost, obtained by the organic fraction of solid urban wastes, in comparison with traditional chemical fertilization practices on potato (Solanum tuberosum L.) crop. Seven genetically biodiverse cultivars (Cvs - King Edward, Pentland Dell, Maris Piper, Wilja, Kingston, Spunta, Red Pontiac) were employed to establish an experimental field in southern Italy. The field was subdivided into two portions (about 1000 m2 each): one was amended with compost at 20 tons per hectare, while the other one was supplemented with ammonium sulphate at 200 Kg per hectare. Element concentrations, productivity and organoleptic characteristics were evaluated, at the end of the experiment, in potato tubers of all Cvs obtained from both kinds of fertilised soil. cDNA-AFLP and MSAP analyses were performed on leaves and tubers collected from Red Pontiac Cv, to estimate if any transcriptome or epigenetic modifications, due to different kinds of fertilization, were induced. Mineral fertilization and compost amendment did not cause any significant modification in transcriptome and in epigenome profiles in both analyzed organs, as well as in the productivity, organoleptic characteristics, nutrients and trace elements in tubers. Only for K, the tubers grown on compost amended soil showed, on average, a higher K concentration in respect to those grown on mineral fertilised soil. In conclusion, potato tubers, produced by means of different soil fertilizations, show similar characteristics in terms of productivity, quality and nutraceutical properties.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11386/4091053
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