Turkish Journal of Agriculture and Forestry




Abstract: The consumption of agricultural water resources is enormous, and in the face of water scarcity, optimizing the utilization rate of water resources is urgent. As a common medicinal plant, the planting area of platycodon grandiflorus crops has increased. Therefore, in order to maximize the yield and quality of platycodon crops, different irrigation treatment methods are developed based on their evaporation capacity, and the impact of different irrigation amounts on platycodon crops is explored. Different irrigation amounts affect multiple indicators of the platycodon plant. The experimental results indicated that for the daily transpiration of the platycodon plant, 120% irrigation was more effective during its maturity period, and its stem flow efficiency overall performed better on sunny days. 120% irrigation can obtain the maximum number of leaves. For the quality of platycodon grandiflorus crops, 120% irrigation can achieve the highest content of saponins, flavonoids, and polysaccharides, but 100% irrigation was required to achieve the highest soluble protein content. Overall, platycodon crops require 100% irrigation during the flowering stage, but 120% irrigation during the maturity stage. As the temperature increases, the irrigation amount should be appropriately increased, and vice versa. Research has demonstrated the impact of irrigation volume on platycodon crops, and controlling irrigation volume can effectively enhance the utilization efficiency of water resources.


Platycodon grandiflorus, transpiration, irrigation volume, yield, quality

First Page


Last Page