Site conditions and genotype influence polyphenol content in potatoes

The effect of potato variety (1 purple and 8 yellow varieties), site conditions (5 localities tested) and mineral fertilization (4 variants with N, P, K and Mg) on the concentration of total polyphenols (TP) in potato tubers was investigated during two years (2005 and 2006). TP concentrations were i...

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Published in:Horticultural science (Praha) 2007-01, Vol.34 (4), p.132-137
Main Authors: Hamouz, K.,Ceska Zemedelska Univ., Prague (Czech Republic). Fakulta Agrobiologie, Potravinovych a Prirodnich Zdroju, Lachman, J.,Ceska Zemedelska Univ., Prague (Czech Republic). Fakulta Agrobiologie, Potravinovych a Prirodnich Zdroju, Cepl, J.,Vyzkumny Ustav Bramborarsky, Havlickuv Brod (Czech Republic), Dvorak, P.,Ceska Zemedelska Univ., Prague (Czech Republic). Fakulta Agrobiologie, Potravinovych a Prirodnich Zdroju, Pivec, V.,Ceska Zemedelska Univ., Prague (Czech Republic). Fakulta Agrobiologie, Potravinovych a Prirodnich Zdroju, Prasilova, M.,Ceska Zemedelska Univ., Prague (Czech Republic). Provozne Ekonomicka Fakulta
Format: Article
Language:English
Subjects:
ABONOS INORGANICOS
APLICACION DE ABONOS
AZOTE
CARACTERISTICAS DEL SITIO
ENGRAIS MINERAL
environmental conditions
ENVIRONMENTAL TEMPERATURE
FACTEUR LIE AU SITE
FERTILISATION
Fertilization
FERTILIZER APPLICATION
Fertilizers
FOSFORO
Genotypes
http://www.fao.org/aos/agrovoc#c_10795
http://www.fao.org/aos/agrovoc#c_13551
http://www.fao.org/aos/agrovoc#c_15881
http://www.fao.org/aos/agrovoc#c_2598
http://www.fao.org/aos/agrovoc#c_27870
http://www.fao.org/aos/agrovoc#c_4517
http://www.fao.org/aos/agrovoc#c_5192
http://www.fao.org/aos/agrovoc#c_5804
http://www.fao.org/aos/agrovoc#c_6139
http://www.fao.org/aos/agrovoc#c_6161
http://www.fao.org/aos/agrovoc#c_7087
http://www.fao.org/aos/agrovoc#c_7221
http://www.fao.org/aos/agrovoc#c_7998
http://www.fao.org/aos/agrovoc#c_8157
INORGANIC FERTILIZERS
MAGNESIO
MAGNESIUM
Mineral fertilizers
NITROGEN
NITROGENO
PAPA
PHOSPHORE
PHOSPHORUS
POLIFENOLES
POLYPHENOL
POLYPHENOLS
POMME DE TERRE
POTASIO
POTASSIUM
potato
POTATOES
PRECIPITACION ATMOSFERICA
PRECIPITATION
SITE FACTORS
SOLANUM TUBEROSUM
TEMPERATURA AMBIENTAL
TEMPERATURE AMBIANTE
TUBERCULE
TUBERCULO
TUBERS
VARIEDADES
VARIETE
VARIETIES
variety
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Summary:The effect of potato variety (1 purple and 8 yellow varieties), site conditions (5 localities tested) and mineral fertilization (4 variants with N, P, K and Mg) on the concentration of total polyphenols (TP) in potato tubers was investigated during two years (2005 and 2006). TP concentrations were influenced mainly by potato genotypes, but also by the locality. On the contrary, they were not significantly affected by the fertilization. The highest TP concentrations were determined in the purple flesh Valfi variety; they were by 74 to 141% on average higher than those in yellow flesh varieties during the two years, respectively. In yellow flesh tubers, the highest TP concentration was recorded in the variety Ditta; it was higher by 38, 29 and 24% than in Saturna, Agria and Asterix varieties, respectively. The differences between the localities studied were due mainly to the temperature during the vegetation period. Potatoes from the locality with the lowest temperatures had TP concentrations by 5.7 to 56.3% higher than tubers from the other localities.
ISSN:0862-867X
1805-9333
DOI:10.17221/1894-hortsci