| 摘要 | 第1-9页 |
| ABSTRACT | 第9-16页 |
| Chapter 1 Review of Literature | 第16-38页 |
| ·Introduction | 第16-17页 |
| ·Economic Importance of Wheat | 第17-18页 |
| ·Taxonomy of Wheat | 第18页 |
| ·Drought Stress | 第18-19页 |
| ·Mechanism of drought tolerance | 第19-20页 |
| ·Drought Escape | 第19页 |
| ·Drought avoidance | 第19-20页 |
| ·Drought Tolerance | 第20页 |
| ·Wheat and Drought Stress | 第20-26页 |
| ·Effect of drought on plant growth | 第21-22页 |
| ·Effect of drought on grain yield | 第22-23页 |
| ·Effect of drought on gas Exchange Parameters | 第23-25页 |
| ·Chlorophyll Content | 第25-26页 |
| ·Water Use Efficiency | 第26-30页 |
| ·Carbon Isotope Discrimination (CID or Δ) | 第27页 |
| ·Relationship of CID with WUE | 第27-28页 |
| ·CID as Selection Criteria | 第28页 |
| ·Utilization of CID in C3Cereals | 第28页 |
| ·Relationship of CID with WUE and Yield | 第28-29页 |
| ·Heritability of CID | 第29页 |
| ·Advantages and Disadvantages of CID | 第29页 |
| ·Surrogates of CID values | 第29-30页 |
| ·Drought Tolerance Indices | 第30-31页 |
| ·Genomic Platforms | 第31-35页 |
| ·Association Mapping | 第32页 |
| ·Marker Assisted Selection | 第32-33页 |
| ·Use of SSR markers | 第33页 |
| ·Single Nucleotide Polymorphism (SNP) | 第33-34页 |
| ·ERECTA Gene | 第34-35页 |
| ·Objectives and experimental design | 第35-38页 |
| Chapter 2 The association of carbon isotope discrimination (Δ) with gas exchangeparameters and yield traits in Chinese bread wheat cultivars under two water 23regimes | 第38-54页 |
| ·Introduction | 第38-40页 |
| ·Materials and Methods | 第40-43页 |
| ·Plant material | 第40-41页 |
| ·Experimental conditions | 第41-42页 |
| ·Measurements of traits | 第42-43页 |
| ·Data analysis | 第43页 |
| ·Results | 第43-47页 |
| ·Analysis of variance | 第43-45页 |
| ·Correlation analysis | 第45-47页 |
| ·Discussion | 第47-53页 |
| ·Effect of water conditions on Δ and yield traits | 第47-48页 |
| ·Effect of water conditions on gas exchange parameters | 第48-49页 |
| ·Relationship between Δ and gas exchange parameters | 第49-50页 |
| ·Relationship between Δ and Chl | 第50-51页 |
| ·Relationship of Δ with grain yield, biomass and harvest index | 第51-53页 |
| ·Conclusions | 第53-54页 |
| Chapter 3 Alternative traits to grain carbon isotope discrimination for assessing drought tolerance and yield potential in common bread wheat | 第54-71页 |
| ·Introduction | 第54-57页 |
| ·Materials and Methods | 第57-58页 |
| ·Plant material | 第57页 |
| ·Experimental conditions | 第57页 |
| ·Measurements | 第57-58页 |
| ·Data analysis | 第58页 |
| ·Results | 第58-61页 |
| ·Effect of water regime and genotype on measured traits | 第58-59页 |
| ·Relationship between Δ with GY, ash content and mineral concentrations | 第59-60页 |
| ·Relationship between Δ with grain yield, gas exchange parameters and Chl | 第60-61页 |
| ·Discussion | 第61-70页 |
| ·Effect of water stress on grain Δ and grain yield | 第61-62页 |
| ·Effect of water stress on ash content and mineral concentrations | 第62页 |
| ·Effect of water stress on leaf chlorophyll content and gas exchange parameters | 第62-63页 |
| ·Relationship between Δ and gas exchange parameters | 第63-65页 |
| ·Relationship between Δ and grain yield | 第65-67页 |
| ·Relationship of leaf chlorophyll content with grain yield and grain Δ | 第67-68页 |
| ·Relationship of ash content and minerals with grain Δ and grain yield | 第68-70页 |
| ·Conclusions | 第70-71页 |
| Chapter 4 Screening of Chinese bread wheat genotypes by different drought tolerance indices | 第71-87页 |
| ·Introduction | 第71-73页 |
| ·Materials and Methods | 第73-77页 |
| ·Plant material | 第73页 |
| ·Experimental arrangement | 第73-75页 |
| ·Measurement of Traits | 第75-76页 |
| ·Statistical analysis | 第76-77页 |
| ·Results | 第77-81页 |
| ·Response of different traits to water stress | 第77-79页 |
| ·Ranking of genotypes by drought tolerance indices | 第79页 |
| ·Interrelationships among drought tolerant indices | 第79-80页 |
| ·Principal component analysis | 第80-81页 |
| ·Cluster analysis | 第81页 |
| ·Discussion | 第81-86页 |
| ·Favorable drought tolerance indices | 第81-83页 |
| ·Screening based on combination of indices | 第83-86页 |
| ·Conclusions | 第86-87页 |
| Chapter 5 Identification of SNPs in TaER genes and their association with CID related traits in Chinese bread wheat genotypes under water stress condition | 第87-104页 |
| ·Introduction | 第87-88页 |
| ·Materials and Methods | 第88-90页 |
| ·Plant Material | 第88-89页 |
| ·Measurement of Phenotypic Traits | 第89页 |
| ·Extraction of DNA | 第89页 |
| ·PCR Amplification of the partial TaER sequence | 第89页 |
| ·Cloning and Sequencing | 第89-90页 |
| ·Sequence Analysis and SNP discovery | 第90页 |
| ·Association Analysis | 第90页 |
| ·Results | 第90-102页 |
| ·Cloning of partial TaER-1 and TaER-2 | 第90-92页 |
| ·Sequence Variation | 第92-96页 |
| ·Association of TaER-1 SNPs with Phenotypic Traits | 第96-99页 |
| ·Association of TaER-2 SNPs with Phenotypic Traits | 第99-102页 |
| ·Discussion | 第102-103页 |
| ·Conclusions | 第103-104页 |
| Chapter 6 General Conclusions | 第104-106页 |
| References | 第106-126页 |
| Appendix | 第126-136页 |
| ACKNOWLEDGEMENTS | 第136-137页 |
| CURRICULUM VITAE | 第137-138页 |
