@phdthesis{oai:sucra.repo.nii.ac.jp:00018920, author = {LI, Tao}, month = {}, note = {v, 80 p., List of figures iii Acknowledgment v Chapter 1 Introduction 1 1.1 Introduction 1 References 5 Chapter 2 Fractal Dimension 7 2.1 Introduction of fractal 7 2.2 Applications of fractal geometry 8 2.3 Calculating methods of fractal dimension 10 2.3.1 Area-perimeter 10 2.3.2 Power spectrum 11 2.3.3 Divider relation 13 2.3.4 Box-counting 14 Reference 18 Chapter 3 Image processing 20 Chapter 4 Negative effect measure by FD under cadmium stress 24 4.1 Introduction 24 4.2Meterials and methods 27 4.2.1 Plant materials and growth conditions 27 4.2.2 Complexity measurements 28 4.2.3 Traditional measurements 29 4.3 Results and discussion 30 4.3.1 Complexity index and FD 30 4.3.2 Influence of Cd on root length 34 4.3.3 Influence of Cd on root weight 38 4.4 Conclusion 41 References 42 Chapter 5 Negative effect measured by FD under Cu stress 5 5.1 Introduction 45 5.2 Materials and methods 47 5.2.1 Plant materials and growth conditions 47 5.3 Results and discussion 50 5.3.1 Complexity and FD 50 5.3.3 Influence of Cu on root weight 56 5.4 Conclusion 57 References 58 Chapter 6 60 Positive effect measured by FD under Zn stress 60 6.1 Introduction 60 6.2 Materials and methods 62 6.2.1 Plant materials and growth conditions 62 6.3 Results and discussion 64 6.3.1 Complexity and FD 64 6.3.2 Influence of Zn on root length 67 6.3.3 Influence of Zn on root weight 70 6.4 Conclusion 71 References 72 Chapter 7 Discussion and conclusion 74 References 80, 指導教員 : 門野博史, text, application/pdf}, school = {埼玉大学}, title = {EVALUATION OF PLANT ROOT SYSTEM COMPLEXITY UNDER HEAVY METAL STRESS BASED ON FRACTAL ANALYSIS}, year = {2019}, yomi = {リ, タオ} }