Aeration in Roots
Sessions at the XIV International Botanical Congress at Berlin in 1987 and the topics being addressed within this section of the workshop reveal a welcome broadening of research into anaerobic stress in plants. This essay is addressed to those with an interest in root anoxia/hypoxia but who may as yet be unfamiliar with some of the basic biophysical complexities of the aeration process at the whole root or root system level. The modelling of aeration is the central theme, developed first by the use of some simple electrical analogues and diffusion equations. This is followed by the introduction (but not derivation) of more complex models which accommodate to some extent the multicylindrical basis of root aeration. These models suggest that there is considerable potential for the localized development of anoxia in roots and temperature as well as temporal and spatial variation in root characteristics are stressed as important determining factors in this.
KeywordsRoot Segment Oxygen Deficit Oxygen Source Root Aeration Radial Oxygen Loss
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