Influence of the Nutritional Solution Temperature on the Propagation and Minituber Production of Potato by Aeroponic Technique in Summer Period
Nguyễn Quang Thạch
Abstract
Potato minituber production was investigated in an aeroponic system with different nutrient solution temperatures in the range from 15oC to 25oC. The aims of the study was to identify the influence of the temperature in the root region in the aeroponic box on the growth, development and minitubers production during the summer period. The results showed that aeroponics technology could be successfully applied for acclimatization of in-vitro potato plantlets as well as rapid propagation in both main and off-season. The multiplication rate reached 7 to 8 times within a month when the solution temperature was kept at 20oC. Under this condition, the potato plants grew well and gave minituber yield in the range of 613.0 to 967.7 tubers per square meter. With these findings a new propagation technique was proposed for potato propagation and/or minituber seeds production at different times of the year, including autumn season in the Red River Delta
