Conclusions
At the beginning of the trial, plants grown at an EC of 1.5 mS.cm-1 became too vegetative, which delayed tuber initiation for all treatments. In order to activate tuber initiation and production, the nutrient solution EC was brought down to 1 mS.cm-1 and the Ca content of the nutrient solution was reduced. The reduction in Ca concentration was successful in inducing stolon tips to form tubers.
Harvest interval did not influence shoot, root or stolon growth and development but the total number of tubers and the quality of the tubers were affected. The highest yield, in terms of number of tubers was obtained from plants harvested every 7 days - 11 harvests over the 118 day growing period. The correlation between harvesting interval and storage temperatures suggested that tubers, harvested every 7, 10 and 14 days and stored at 25oC resulted in the optimal sprouting capacity. Concerning yield, harvesting minitubers at a 7 day intervals produced the best result with 299.17 minitubers/m2 harvested during harvesting intervals did not play a major role in the distribution of macro and trace elements within minitubers except for K and Cu for tubers harvested at a 10 day interval.
The size of tubers at harvest significantly influenced sodium content with a higher sodium concentration in the smaller or physiologically younger potato tubers. Plant densities had a significant effect on stolon number, leaf and stem dry mass, stolon and tuber dry mass and root dry mass. The result observed in this study illustrated that
Conclusions
At the beginning of the trial, plants grown at an EC of 1.5 mS.cm-1 became too vegetative, which delayed tuber initiation for all treatments. In order to activate tuber initiation and production, the nutrient solution EC was brought down to 1 mS.cm-1 and the Ca content of the nutrient solution was reduced. The reduction in Ca concentration was successful in inducing stolon tips to form tubers.
Harvest interval did not influence shoot, root or stolon growth and development but the total number of tubers and the quality of the tubers were affected. The highest yield, in terms of number of tubers was obtained from plants harvested every 7 days - 11 harvests over the 118 day growing period. The correlation between harvesting interval and storage temperatures suggested that tubers, harvested every 7, 10 and 14 days and stored at 25oC resulted in the optimal sprouting capacity. Concerning yield, harvesting minitubers at a 7 day intervals produced the best result with 299.17 minitubers/m2 harvested during harvesting intervals did not play a major role in the distribution of macro and trace elements within minitubers except for K and Cu for tubers harvested at a 10 day interval.
The size of tubers at harvest significantly influenced sodium content with a higher sodium concentration in the smaller or physiologically younger potato tubers. Plant densities had a significant effect on stolon number, leaf and stem dry mass, stolon and tuber dry mass and root dry mass. The result observed in this study illustrated that
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