Changes of reducing sugar content in processing potatoes during storage
2002
Makaraviciute, A. (Lithuanian Inst. of Agriculture (Lithuania). Elmininkai Research Station)
The effect of different fertilisers and storage temperature on the content of reducing sugar in potatoes of different varieties, destined for processing into chips, was investigated at the Elmininkai Research Station of the Lithuanian Institute of Agriculture during the period 2000-2001. Five potato varieties belonging to different maturity groups were investigated: early 'Goda' and 'Voke', medium early 'Lady Rosetta', medium late 'Saturna' and 'Hermes'. Potatoes of all the investigated varieties were grown in the plots with different fertilisation: 1 - manure - 40 t ha*[-1), 2 - chopped straw+one-component mineral fertilisers at the rate of N45P45K90, 3 - one-component mineral fertilisers at the rate of N90P90K180, 4 - complex mineral fertilisers with microelements at the rate of N90P90K180. It was established that reducing sugar content in potato tubers depended on the genetic properties of the variety, storage temperature and fertilisation.
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