| ABSTRACT | 第13-16页 |
| 摘要 | 第17-21页 |
| CHAPTER ONE: GENERAL INTRODUCTION AND LITERTURE REVIEW | 第21-37页 |
| 1.1 Background information | 第21-22页 |
| 1.2 Causes of soil salinity | 第22页 |
| 1.3 Effects of salinity on plant growth and development | 第22-23页 |
| 1.4 Mechanisms of salt tolerance in glycophytes | 第23-26页 |
| 1.4.1 Ion exclusion and inclusion | 第24-25页 |
| 1.4.2 Antioxidant defense | 第25页 |
| 1.4.3 Accumulation of compatible solutes | 第25-26页 |
| 1.5 Factors affecting salinity tolerance of crops | 第26页 |
| 1.6 Mitigation of adverse soil salinity effects on plant growth | 第26-30页 |
| 1.6.1 Application of exogenous plant growth regulators | 第27-28页 |
| 1.6.2 Mineral nutrition and salinity tolerance | 第28-29页 |
| 1.6.3 Role of grafting on salt tolerance in cucumber | 第29页 |
| 1.6.4 Improving salinity tolerance of crops through transgenic approaches | 第29-30页 |
| 1.6.5 Improving salinity tolerance through conventional breeding | 第30页 |
| 1.7 Genetics of salinity tolerance in glycophtytes | 第30-35页 |
| 1.7.1 Selection criteria for salinity tolerance in glycophytes | 第31页 |
| 1.7.2 Screening system for salinity tolerance | 第31-32页 |
| 1.7.3 Molecular studies of salinity tolerance in glycophytes | 第32-34页 |
| 1.7.4 Proteomics of salt tolerance in cucumber | 第34-35页 |
| 1.8 The problem statement | 第35页 |
| 1.9 Justification of the study | 第35-36页 |
| 1.10 Aims | 第36页 |
| 1.11 Objectives | 第36页 |
| 1.12 Limitations | 第36-37页 |
| CHAPTER TWO: EVALUATION OF SALT TOLERANCE OF CUCUMBER AT SEEDLING AND GERMINATION STAGES | 第37-57页 |
| 2.1 Introduction | 第37-39页 |
| 2.2 Materials and Methods | 第39-43页 |
| 2.2.1 Seedling experiment | 第39页 |
| 2.2.2 Plant materials and treatments | 第39-41页 |
| 2.2.3 Plant growth and survival rate | 第41页 |
| 2.2.4 Cell membrane stability | 第41页 |
| 2.2.5 Gas exchange characteristics | 第41-42页 |
| 2.2.6 Plant pigment determination | 第42页 |
| 2.2.7 Mineral distribution | 第42页 |
| 2.2.8 Germination experiment | 第42-43页 |
| 2.2.9 Statistical Analysis | 第43页 |
| 2.3 Results | 第43-51页 |
| 2.3.1 Growth and survival rate | 第43-46页 |
| 2.3.2 Cell membrane permeability | 第46-47页 |
| 2.3.3 Gas exchange characteristics | 第47-48页 |
| 2.3.4 Leaf pigment and mineral distribution | 第48-50页 |
| 2.3.5 Germination response of cucumber genotypes to NaCl salinity | 第50-51页 |
| 2.4 Discussion | 第51-56页 |
| 2.5 Conclusions | 第56-57页 |
| CHAPTER THREE: HERITABILITY AND GENE EFFECTS FOR SALINITY TOLERANCE IN CUCUMBER ESTIMATED BY GENERATION MEAN ANALYSIS | 第57-69页 |
| 3.1 Introduction | 第57-59页 |
| 3.2 Materials and methods | 第59-61页 |
| 3.2.1 Experimental material | 第59页 |
| 3.2.2 Experimental design and treatment | 第59-60页 |
| 3.2.3 Evaluation of salt tolerance | 第60页 |
| 3.2.4 Data analysis | 第60-61页 |
| 3.2.5 Phenotypic and genotypic correlation | 第61页 |
| 3.3 Results | 第61-66页 |
| 3.3.1 Mean values of trait of parental lines and their progeny under salinity | 第61-62页 |
| 3.3.2 Inheritance of salinity tolerance in cucumber | 第62-63页 |
| 3.3.3 Gene effects on salt tolerance (TOL), relative leaf number (RLN14), leaf area(LA) and vine length (VL) of cucumber cross 11411S x 11439S | 第63-64页 |
| 3.3.4 Dominance ratio, heterosis, potence ratio and heritability of various traits of cucumber under 80 mM NaCl stress | 第64-65页 |
| 3.3.5 Trait correlation under salinity stress | 第65-66页 |
| 3.4 Discussion | 第66-68页 |
| 3.5 Conclusion | 第68-69页 |
| CHAPTER FOUR: QUANTITATIVE TRAIT ANALYSIS OF SALT TOLERANCE IN CUCUMBER | 第69-83页 |
| 4.1 Introduction | 第70-72页 |
| 4.2 Materials and methods | 第72-76页 |
| 4.2.1 Development of mapping population for QTL analysis | 第72页 |
| 4.2.2 Phenotypic evaluation of salinity tolerance | 第72-74页 |
| 4.2.3 DNA extraction | 第74页 |
| 4.2.4 SSR marker and QTL analyses | 第74-75页 |
| 4.2.5 Genetic Linkage Map construction and QTL analysis | 第75页 |
| 4.2.6 Statistical analysis | 第75-76页 |
| 4.3 Results | 第76-80页 |
| 4.3.1 Salinity tolerance of parental and F_(2:3) lines | 第76-77页 |
| 4.3.2 Phenotypic correlations | 第77-78页 |
| 4.3.3 QTLs associated with salinity tolerance traits | 第78-80页 |
| 4.4 Discussion | 第80-82页 |
| 4.5 Conclusions | 第82-83页 |
| CHAPTER FIVE: GENERAL DISCUSSION | 第83-87页 |
| CONCLUSIONS | 第87-89页 |
| NEW KNOWLEDGE | 第89-91页 |
| REFERENCES | 第91-107页 |
| ABOUT THE AUTHOR | 第107-109页 |
| PUBLICATIONS | 第109-111页 |
| ACKNOWLEGDGEMENTS | 第111-112页 |
