Análogo elétrico da dinâmica estomática em função da radiação solar e potencial hídrico atmosférico

Abstract

The stomatal dynamics is vital to the maintenance of vascular plants. The hydric-electric analogy (in silico) using, in this study, the software Quite Universal Circuits Simulation (Quite Universal Circuit Simulator) makes it possible to perform dynamic simulations stomatal. The objective of this study was to estimate the osmotic potential of the guard cell as a function of solar radiation and correspondence photon-electron, and then model the solar radiation at the top of the atmosphere as an energy source for the model. They were modeled and constructed circuits for global radiation, visible radiation and the wavelengths relating to the frequencies of 447 nm, 475 nm and 670 nm and atmospheric water potential, which served signals to stomatal dynamics. They were modeled and built into two parts: guard cell that used a voltage source controlled by current and ostiole who used a MOSFET transistor type intensification p channel controlled by the guard cell. They were simulated all modules and the results validated in accordance with the literature.