Abstract
INFLUENCE OF PRECIPITATION AND THERMAL CONDITIONS ON STARCH CONTENT IN POTATO TUBERS FROM MEDIUM-EARLY CULTIVARS GROUP
Highlights
Chemical composition and value of potato tubers are mainly determined by cultivars features which are modified under the influence of agrotechnology and climate and soil conditions
The aim of this study was to define the influence of precipitation and thermal conditions on starch content formation in medium-early cultivars of potato grown in six different locations in a period of four years
Precipitation sums were to a large extent higher than precipitation demands of medium-early cultivars of potato
Summary
Chemical composition and value of potato tubers are mainly determined by cultivars features which are modified under the influence of agrotechnology and climate and soil conditions. The contrary opinion presents Bombik et al [2007] as they claim that starch content to the greatest extent depends on vegetation conditions in particular years. These conditions are formed mainly by temperature and precipitation. Excessive amount of precipitation during the growing season of potato has a negative influence on starch accumulating in tubers [Puła and Sokwera 2004], while drought results in increase of dry matter content as well as decrease in starch content in some cultivars [Boguszewska 2007]. Zarzecka et al [2004] claim that content of this polysaccharide is determined by cultivars and years of study and there is a significant relationship between these two factors
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