The Genotypes Identification and Physiological Mechanisms of Potassium Efficiency in Potato:A Review
Potassium is one of the essential mineral nutrients for potato growth and development,and is crucial for potato growth and tuber formation.The low efficiency of potassium absorption and utilization is one of the important limiting factors in potato production in China,and screening the potato genotypes with high potassium efficiency is the best way to enhance the potassium utilization and deal with low potassium stress in potato.In this paper,the methods and indexes for screening of high potassium efficiency varieties of various crops in China and abroad were summarized from four aspects:the definition and assessment of potassium efficiency,the identification and evaluation of crop genotypes with high potassium efficiency,the physiological basis of high potassium absorption and the physiological basis of high potassium utilization.Combining with the characteristics of potato potassium requirement,the feasible methods and influencing factors for screening potato genotypes with high potassium efficiency were put forward,and the future research direction for improving potato potassium efficiency was prospected so as to provide a reference for the high yield and high potassium utilization of potato.
potatopotassiumefficiencyscreeningabsorption and utilization
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