Effects of Mild and Moderate Saline-Alkali Land on the Growth and Quality of Artemisia argyi in Southern Xinjiang

ZHU Siyuan; FENG Jiale; ZHAO Jianing; ZHANG Ruihua; YUE Qinyang; ZHANG Rui; GAO Shan; ZHANG Yanfei

doi:10.15933/j.cnki.1004-3268.2026.03.009

Abstract：To promote the improvement of saline-alkali land and enhance the utilization rate of saline-alkali land in southern Xinjiang and,the Artemisia argyi variety Wuye Dabaiai was taken as the research object and planted in mild saline-alkali land(pH value 9.23,salt content 0.128%)and moderate saline-alkali land(pH value 9.06,salt content 0.338%)to explore the effects of different degrees of saline-alkali land in southern Xinjiang on the growth and quality of Artemisia argyi.The results showed that with the passage of planting time,the plant height,stem thickness and relative chlorophyll content in leaves of Artemisia argyi in mild and moderate saline-alkali land all showed an increasing trend.Compared with mild saline-alkali land,the net photosynthetic rate,stomatal conductance,intercellular CO2 concentration and transpiration rate of Artemisia argyi leaves in moderate saline-alkali land decreased by 3.51%,16.18%,7.82%and 31.33%respectively,while the variable fluorescence/initial fluorescence and maximum photochemical efficiency increased extremely significantly.The activities of superoxide dismutase,peroxidase and catalase increased by 29.65%,66.97%and 1.65%respectively,the contents of soluble sugar and soluble protein increased by 17.46%and 10.02%respectively,and proline decreased by 17.55%.The down yield of leaves and the whole plant in moderately saline-alkali land decreased by 6.84%and 16.96%respectively,and the oil yield decreased by 9.75%.Among the secondary metabolites,the percentages of eucalyptol and borneol in the essential oil components significantly decreased,while the leaf flavonoid content increased by 17.95%.The stem flavonoids and total phenols significantly decreased.The pH values of mild saline-alkali land and moderate saline-alkali land decreased by 6.07%and 5.96%respectively compared to before planting.In conclusion,in a moderate saline-alkali land environment,Artemisia argyi can resist saline-alkali stress by significantly enhancing antioxidant activity and other means.The cultivation of Artemisia argyi can significantly lower the soil pH value and improve the salinization status.