河西灌区轻度盐碱地马铃薯新品种引选试验OA

To explore comprehensive utilization methods for saline-alkali land and to screen potato varieties suitable for cultivation in saline-alkali conditions,thereby providing a theoretical basis for the development of the local potato industry,a comparative introduction and selection experiment was conducted in mildly saline-alkali lands of the Hexi irrigation areas.12 introduced new potato varieties were evaluated using the locally dominant variety Jizhangshu 12 as the control.Results showed that 6 introduced varieties achieved yield increases of more than 10%compared with that in the control variety Jizhangshu 12,among them,Longshu 10 and Zhongshu 18 exhibited distinct yield advantages,with yield increases of 12 865.5 kg/ha and 10 201.5 kg/ha,respectively over the control,corresponding to yield increase rates of 54.8%and 43.5%,respectively.In contrast,Hongmei showed a significant yield reduction of 29.3%compared with the control.Far-infrared quality analysis indicated that 6 new potato varieties,including Longshu 10,Zhongshu 18,Xisen 6,Longshu 7,Longshu 14,and Longshu 16,performed well in 5 conventional tuber quality parameters.Based on a comprehensive evaluation of field adaptability,yield,and quality,6 new potato varieties,Longshu 10,Zhongshu 18,Longshu 7,Xisen 6,Longshu 14,and Longshu 16,were selected as suitable for planting in mildly saline-alkali lands of the Hexi irrigation area.These varieties will serve as core varieties for further research on quality improvement and production efficiency enhancement technology in saline-alkali land potato production.