Abstract
The study of the parameters influencing the absorption of atmospheric humidity not condensed by plants with aerial roots is a challenge in the current context of climatic disturbance where methods of adapting plants to water stress have become the concern of many scientific researchers. Based on Poiseuille and Fick laws, leaf water potential depending on solar radiation and atmospheric water potential around aerial roots; the influence of temperature, relative humidity, inclination angle of roots and solar radiation wavelength on the radial and axial water flow through a root segment is simulated. The various simulations show that a low temperature of the air surrounding the root favors a significant entry of water into the root as well as a relative humidity of the high air approaching 100%. The angle of inclination has an influence on the quantity of water entering the root and that rising in the xylem. These different streams of water are optimized for root tilting of 60°. The wavelength of the red radiation received by the leaves favors more entry and rise of water in the root. Future studies for transgenes should be taken into account the influence of all these parameters.
Highlights
IntroductionMany plants uptake water by underground roots, some of them absorb water by aerial roots
The study of the parameters influencing the absorption of atmospheric humidity not condensed by plants with aerial roots is a challenge in the current context of climatic disturbance where methods of adapting plants to water stress have become the concern of many scientific researchers
In order to develop a sustainable agriculture in the current context of climate change, it is necessary to innovate in the search of solution to the mobilization of the water by the plants for the reduction of the water stress due to the delay or rupture of the rains
Summary
Many plants uptake water by underground roots, some of them absorb water by aerial roots. The aerial root grows from the stems and branches of the plant and lives in the air [12], it mobilizes atmospheric water i.e. rain, dew, fog, uncondensed moisture. This type of water mobilization has been the subject of several assertions and studies [13]-[18]. It is imperative to study the mechanisms of mobilization of atmospheric humidity by taking as a model the aerial roots of plants. To carry out this study which aims to be the one of the bases of the development of new crop varieties, the data of radial and axial conductibility of corn will be used in the simulations
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