The model reproduced accurately the dynamics of plant growth, architecture and geometry of various annual and woody plants, enabling 3D visualization. It was also able to simulate the variability of leaf size on the plant and compensatory growth following pruning, as a result of internal competition for resources. The potential of the model's underlying concepts to predict the plant's phenotypic plasticity is discussed.
A high temperature in situ observation method has been newly developed. The method aims at observing and recording the whole process of growth and melting of oxide crystals taking place in high temperature up to 14OO0C, with very high visibility of surface kinetic processes and mass flow behaviors near the crystal surface, and under precisely controlled growth parameters. A very thin loop-like Pt wire heater (about 3 rnm in diameter) is employed to heat and suspend the melts. Temperature fluctuations of less than ?0.5"C at 1100°C are obtained for high temperature melts. In a central portion of the loop (-1 mm +), the temperature gradient can be negligible. The situation has an advantage for studying surface kinetic processes.The Schlieren method has been applied to visualize mass flow around a growing crystal. By coupling differential interference microscope (DIM), color Schlieren photographs of growing KNb03 crystals in which the diffusion boundary layer around the crystal and a buoyancy-driven convection plume perpendicularly rising up from the surface, have been observed. An investigation of growrh kinetics of the same crystal in relation to the convection and hydrodynamical numbers in high temperature melts can be performed by these facilities.
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