Dissertation > Excellent graduate degree dissertation topics show

Potatoes and root growth simulation study

Author: JieJianXia
Tutor: GeZhenYang
School: Kunming University of Science and Technology
Course: Agricultural Electrification and Automation
Keywords: Virtual plant Root system simulation Potato underground organization Visualization
CLC: S532
Type: Master's thesis
Year: 2009
Downloads: 81
Quote: 0
Read: Download Dissertation

Abstract

The research of the the potato underground organization simulation is a virtual plant roots simulation, the virtual plant roots simulations important work is to study the root architecture, root architecture, root shape and distribution of three-dimensional space in the growth medium, due to growth in the opaque soil in the root system is difficult to observation and analysis and interpretation, which makes simulation model to study the issues related to an important supplementary method. The root architecture computer simulation system has greater value, in addition to can use to explore plant root growth patterns and structural analysis on the application of the agricultural production, and root growth mode analog system available quantitative analysis and show academic soil conditions for crop growth. An important application areas of root architecture simulation system is to visualize the growth of roots in the soil, in order to intuitively understand the roots grow in the soil of plant researchers, and enhance the convenience of the research methods. The predictability of the simulation model to identify the plant the ideal root architecture to adapt to certain soil environment, provide a theoretical basis for the selection, or the introduction of high-quality high-yielding varieties. Through access to a large number of documents, it is found that the current research focuses on virtual root straight roots or root on the composition of root system is generally composed of the root, all configuration is simpler. For the growth process by the roots, stems and more complex consisting of potato underground organization rarely described in detail, nor with calculation simulation in this case, in view of the potatoes have become one of the largest area efficient crop in Yunnan Province we study the growth of the underground organization in potato. This paper carried out the work of the following aspects: First, the combination of the observed field sample collection and laboratory cultivation method, detailed analysis the potato underground organization in different periods of growth, to determine its underground organization configuration characteristics: underground stems grow to 60 Festival days branching 3-4 creeping roots, a rhizomes, stolons grow to about 2cm will stop growing in its tip is inflated to form tubers, followed by tubers increasing the volume until the formation of mature potato. Actual measurements and computer image processing method to a more comprehensive access to important parameters of the model, to a more comprehensive understanding of the the potato underground organization growth law, and curve fitting. Secondly, the use of the geometric structure model of the plant root system modeling method, the the potato underground organization underground stem creeping root three-dimensional solid model stolons, tubers produce similar circle, sphere coordinate random processing and the use of two-dimensional texture mapping the material Tietu methods to be perfect. Finally, using the dynamic tree data structure and recursive traversal methods, combined with Visual C object-oriented programming language and OpenGL powerful graphics library, based on the early work, the preparation of a the potato underground organization of three-dimensional visualization simulation software real-time display the the potato underground organization growth of three-dimensional graphics and output interface geometric parameters. Computer based on the measured parameters, dynamic growth pattern of potato underground organization characteristics of the configuration, the analog system basically meet the visual requirements, simulation process and results more in line with actual growth state of the potato underground organization, indicating established by the analog system is effective. In this paper, the growth of modeling and simulation method has good universality and can be applied to other types of potato growth simulation of underground organization.

Potatoes and root growth simulation study

Abstract

Related Dissertations