stolon initiation and elongation is related to main stem vigour and that later stolon initiation produces longer stolons. After transplantation of plantlets in the aeroponics system, tuber initiation was faster and more tubers initiated at the higher plant density. In the middle of the harvesting season, however, the plants at the lower planting density had longer and more vigorous stolon development and more tubers per plant initiated. This could be explained by the lack of space at high planting density which augmented competition when plants reached the adult phase. Regarding yield, plant density did not have a significant influence. Maybe more plants per treatment than used in this study need to be applied for further conclusions.
Temperature played a significant role on the post storage phase. Sprouting of minitubers was gradually influenced with the increase in temperature. Higher storage temperatures seemed to increase the capacity of sprout appearance regardless of tuber size. Conversely, firmness was influenced by size with the bigger (>40 g) tubers being significantly firmer and therefore less prone to moisture loss during storage