Comparative Study on Yield and Starch Content of Different Potato Varieties
The upgrading of improved varieties can guarantee national food security,and effectively promote the increase of agricultural production and efficiency.It is of great significance to carry out comparative experiments of new varieties and screen new potato varieties suitable for planting in Hulunbeier for the development of potato industry in this region.In 2022-2023,using'Kexin 13'as the control,the phenological period and tuber traits of 11 potato varieties were recorded,and the performance and stability of yield and starch content were measured and evaluated.The average yield of'Longshu 22','Beifang 002'and'Beifang 001'was 3 602,3 470 and 3 291 kg/667m2,respectively,which were significantly higher than that of'Kexin 13',and their stability was good,suggesting that these varieties could be extended as table potatoes in this region.The starch content of'Zhongshuzao 39'was the highest(19.09%),which was signi-ficantly higher than that of'Kexin 13',with good stability.The yield of this variety was higher than that of'Kexin 13'though the difference was not significant,and the yield stability was medium high.For'Zhongshuzao 39',it could be recommended as an early maturing high starch variety for starch processing in this region,but some agronomic measures designed especially for this variety should be taken to ensure its yield.
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