| ABSTRACT | 第6-9页 |
| 摘要 | 第10-16页 |
| CHAPTER 1. INTRODUCTION AND REVIEW OF LITERATURE | 第16-34页 |
| 1.1 General Introduction | 第16-18页 |
| 1.2 Review of literature | 第18-32页 |
| 1.2.1 Health and environmental impacts of selenium | 第18-21页 |
| 1.2.2 Selenium essentiality, deficiency and toxicity in plants | 第21-23页 |
| 1.2.3 Selenium transformation, distribution, and speciation in soil-plant system | 第23-24页 |
| 1.2.4 Role of selenium application in plants | 第24-25页 |
| 1.2.5 Fertilization and application methods of selenium | 第25-29页 |
| 1.2.6 Biofortification of selenium | 第29-31页 |
| 1.2.7 Bioaccessibility of selenium to human | 第31-32页 |
| 1.3 Research Objectives | 第32-34页 |
| CHAPTER 2. EFFECTS OF SELENITE AND SELENATE APPLICATION ON DISTRIBUTION AND TRANSFORMATION OF SELENIUM FRACTIONS IN SOIL AND ITS BIOAVAILABILITY FOR WHEAT (TRITICUM AESTIVUM L.) | 第34-49页 |
| 2.1 Introduction | 第34-36页 |
| 2.2 Materials and Methods | 第36-40页 |
| 2.2.1 Experimental Materials | 第36页 |
| 2.2.2 Experimental Design | 第36-37页 |
| 2.2.3 Chemical Analysis | 第37-39页 |
| 2.2.4 Statistical analysis | 第39-40页 |
| 2.3 Results | 第40-45页 |
| 2.3.1 Distribution characteristics of different Se fractions in soil | 第40-43页 |
| 2.3.2 Mobility and availability of Se in soil | 第43-45页 |
| 2.4 Discussion | 第45-48页 |
| 2.5 Conclusions | 第48-49页 |
| CHAPTER 3: RESPONSE OF WHEAT (TRITICUM AESTIVUM L.) VARIETIES TO THE APPLICATION OF HIGH AND LOW DOSES OF SELENITE AND SELENATE | 第49-66页 |
| 3.1 Introduction | 第49-51页 |
| 3.2 Materials and Methods | 第51-54页 |
| 3.2.1 Materials | 第51页 |
| 3.2.2 Experimental Design | 第51-52页 |
| 3.2.3 Photosynthetic measurements | 第52页 |
| 3.2.4 Chemical Analysis | 第52-54页 |
| 3.2.5 Statistical analysis | 第54页 |
| 3.3 Results | 第54-62页 |
| 3.3.1 Se uptake in different wheat varieties | 第54-58页 |
| 3.3.2 Se distribution in different wheat varieties | 第58页 |
| 3.3.3 Effect of Se application on the yield of wheat varieties | 第58-60页 |
| 3.3.4 Effect of Se application on the photosynthetic properties of wheat varieties | 第60-62页 |
| 3.3.5 Tolerance or susceptibility of each wheat varieties to the application of Se | 第62页 |
| 3.4 Discussion | 第62-65页 |
| 3.4.1 Uptake and accumulation of Se and distribution in wheat varieties and other plants | 第63-64页 |
| 3.4.2 Yield response of wheat varieties to the application of Se as selenite or selenate | 第64-65页 |
| 3.4.3 Photosynthetic properties of wheat varieties to the application of Se as selenite orselenate | 第65页 |
| 3.5 Conclusion | 第65-66页 |
| CHAPTER 4: TRANSLOCATION AND DISTRIBUTION OF SELENIUM IN WHEAT AS AFFECTED BY SOIL OR FOLIAR APPLIED SELENITE OR SELENATE IN ACTUAL FIELD CONDITIONS | 第66-82页 |
| 4.1 Introduction | 第66-69页 |
| 4.2 Materials and Methods | 第69-72页 |
| 4.2.1 Study site and experimental materials | 第69页 |
| 4.2.2 Experimental Design | 第69-70页 |
| 4.2.3 Chemical Analysis | 第70-71页 |
| 4.2.4 Statistical analysis | 第71-72页 |
| 4.3 Results | 第72-78页 |
| 4.3.1 Effect of soil or foliar applied Se on wheat yield | 第72页 |
| 4.3.2 Se concentration at tillering stage in root and shoot of wheat | 第72-73页 |
| 4.3.3 Se concentration before flowering stage in different parts of wheat | 第73-75页 |
| 4.3.4 Se concentration in different parts of wheat after harvest | 第75-78页 |
| 4.3.5 Translocation and distribution of Se in different parts of wheat by soil or foliar applied Se | 第78页 |
| 4.4 Discussion | 第78-81页 |
| 4.5 Conclusion | 第81-82页 |
| CHAPTER 5: EFFECT OF SOIL OR FOLIAR APPLIED SELENITE AND SELENATE ON DIFFERENT FRACTIONS OF GRAIN SELENIUM CONCENTRATION AND GRAIN QUALITY OF WHEAT | 第82-94页 |
| 5.1 Introduction | 第82-84页 |
| 5.2 Materials and Methods | 第84-86页 |
| 5.2.1 Experimental materials and design | 第84页 |
| 5.2.2 Grain processing | 第84-85页 |
| 5.2.3 Grain protein content | 第85页 |
| 5.2.4 Quality assurance (QA)/quality control (QC) in chemical analyses | 第85页 |
| 5.2.5 Statistical analysis | 第85-86页 |
| 5.3 Results | 第86-91页 |
| 5.3.1 Se concentration in different fractions of wheat flours by soil or foliar application | 第86-87页 |
| 5.3.2 Se concentration in different fractions of wheat bran by soil or foliar application | 第87-89页 |
| 5.3.3 Difference in grain protein proportion of wheat flour fractions affected by soil or foliar application | 第89-91页 |
| 5.4 Discussion | 第91-92页 |
| 5.5 Conclusion | 第92-94页 |
| CHAPTER 6: MAIN CONCLUSIONS, HIGHLIGHTS, RECOMMENDATIONS AND FUTURE PERSPECTIVES | 第94-98页 |
| 6.1 Conclusions | 第94-96页 |
| 6.2 Highlights | 第96-97页 |
| 6.3 Recommendations | 第97页 |
| 6.4 Future Perspectives | 第97-98页 |
| REFERENCES | 第98-122页 |
| ABOUT THE AUTHOR | 第122-123页 |
| PUBLICATIONS | 第123-125页 |
| ACKNOWLEDGEMENTS | 第125页 |
