Impact of water stress on yield and quality of cassava starch

摘要: Abstract Cassava ( Manihot esculenta Crantz) is an important source of industrial raw materials. Products obtained from cassava include chip/pellets for animal feed and starch. Important major uses are the amount quality starch this crop. Production efficiency, including yield starch, markedly influenced by environmental conditions, especially water stress during early plant development immediately before root harvest. In plants deprived first 6 months were characterized a lower compared to without (starch yields six varieties Rayong 1, 5, 60, 90, Kasetsart 50 CMR 33-57-81 0.1–0.2 5.0–8.7 t/ha water-stressed plants). Furthermore, growth, was functionally different that laid-down under optimum growing conditions. Plants responded subsequent rainfall after 2 contained significant amounts though less than expected. Despite fact availability producing most functional properties remained different. The portfolio changes sufficient as regards quality. Most effected hydration properties. Starch granules despite being smaller (mean size distribution) expected morphologically normal. A second drought period further some properties, but sustained influence seemed dominate response plant's metabolism. All similarly affected.