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United States Department of Agriculture

Agricultural Research Service

Research Project: Development of Sustainable Integrated Crop Management Systems for the Mid-Southern United States Title: The physiology of potassium in crop production

Authors
item Oosterhuis, Derrick -
item Loka, Dimitra -
item Kawakami, Eduardo -
item Pettigrew, William

Submitted to: Advances in Agronomy
Publication Type: Book / Chapter
Publication Acceptance Date: February 3, 2014
Publication Date: May 5, 2014
Citation: Oosterhuis, D.M., Loka, D.A., Kawakami, E.M., Pettigrew, W.T. 2014. The physiology of potassium in crop production. In: Sparks, D.L. (Ed.), Advances in Agronomy, Academic Press, 126:203-234.

Technical Abstract: Potassium plays a major role in the basic functions of plant growth and development. In addition, K is also involved in numerous physiological functions related to plant health and tolerance to biotic and abiotic stress. However, deficiencies occur widely resulting in poor growth, lost yield and reduced fiber quality. This review describes the physiological functions of K and the role in stress relief and also provides some agronomic aspects of K requirements, diagnosis of soil and plant potassium status, and amelioration. The physiological processes described include enzymes and organic compound synthesis regulation, water relations and stomates, photosynthesis, transport, cell signaling, and plant response to drought stress, cold stress, salt stress, as well as biotic stresses.

Last Modified: 11/24/2014
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