| ACKNOWLEDGEMENTS | 第1-10页 |
| CONTENTS | 第10-13页 |
| ABSTRACT | 第13-16页 |
| 摘要 | 第16-18页 |
| CHAPTER 1 GENERAL INTRODUCTION | 第18-23页 |
| ·Importance of oilseed rape | 第18-19页 |
| ·Salinity and associated problems | 第19-20页 |
| ·Strategies to tackle salinity problem | 第20-21页 |
| ·Objectives of the present study | 第21-22页 |
| ·An overview of the whole study | 第22-23页 |
| CHAPTER 2 LITERATURE REVIEW | 第23-45页 |
| ·Stress | 第23页 |
| ·What is salinity | 第23-25页 |
| ·Primary causes of salinity | 第23-24页 |
| ·Secondary causes of salinity | 第24-25页 |
| ·Salinity and agriculture | 第25-32页 |
| ·Effects of salinity on soil properties | 第25-26页 |
| ·Symptoms of salinity stress on plants | 第26-27页 |
| ·Effects of salinity on germination,emergence and growth | 第27-28页 |
| ·Efects of salinity on water relations | 第28-29页 |
| ·Effects of salinity on photosynthesis | 第29-30页 |
| ·Effects of salinity on ultra-morphology of plants | 第30-31页 |
| ·Effects of salinity on plant nutrition | 第31-32页 |
| ·Plant salt tolerance | 第32-41页 |
| ·Salt tolerance mechanisms in plants | 第32-38页 |
| ·Criteria to select salinity tolerant plants | 第38-41页 |
| ·5-Aminolevulinic acid(ALA) | 第41-45页 |
| ·ALA structure and chemical nature | 第41-42页 |
| ·Role of ALA in agriculture | 第42-45页 |
| CHAPTER 3 ALA AMELIORATES SALINITY INDUCED METABOLIC,WATER RELATEDAND BIOCHEMICAL CHANGES IN Brassica napus L | 第45-65页 |
| ·Introduction | 第45-46页 |
| ·Materials and methods | 第46-51页 |
| ·Plant materials and treatments | 第46-47页 |
| ·Relative growth rate(RGR) | 第47页 |
| ·Cell membrane injury and lipid peroxidation assay | 第47-48页 |
| ·Osmotic potential and relative water content | 第48页 |
| ·Soluble protein and proline contents | 第48-49页 |
| ·Soluble sugar and free amino acid contents | 第49页 |
| ·Superoxide (O_2~-) radical and hydrogen peroxide (H_2O_2) contents | 第49-50页 |
| ·Activities of non-enzymatic antioxidants | 第50页 |
| ·Activities of antioxidant enzymes | 第50-51页 |
| ·Statistical analysis | 第51页 |
| ·Results | 第51-60页 |
| ·Relative growth rate | 第51-52页 |
| ·Cell membrane injury and lipid peroxidation assay | 第52-53页 |
| ·Osmotic potential and relative water content | 第53-55页 |
| ·Soluble protein and proline contents | 第55-56页 |
| ·Soluble sugar and free amino acid contents | 第56-57页 |
| ·Superoxide (O_2~-) radical and hydrogen peroxide (H_2O_2) contents | 第57-58页 |
| ·Activities of non-enzymatic antioxidants | 第58-59页 |
| ·Activities of antioxidant enzymes | 第59-60页 |
| ·Discussion | 第60-64页 |
| ·Conclusions | 第64-65页 |
| CHAPTER 4 ALA IMPROVES PHOTOSYNTHETIC GAS EXCHANGE CAPACITY AND IONUPTAKE UNDER SALINITY STRESS IN Brassica napus L | 第65-81页 |
| ·Introduction | 第65-66页 |
| ·Materials and methods | 第66-69页 |
| ·Plant materials and growth conditions | 第66-67页 |
| ·Determination of plant biomass | 第67页 |
| ·Photosynthetic gas exchange and water use efficiency measurements | 第67-68页 |
| ·Chlorophyll content | 第68页 |
| ·Water potential | 第68页 |
| ·Mineral nutrition uptake analysis | 第68-69页 |
| ·Statistical analysis | 第69页 |
| ·Results | 第69-77页 |
| ·Plant growth response | 第69页 |
| ·Photosynthesis related parameters and water use efficiency response | 第69-72页 |
| ·Effect on chlorophyll content | 第72页 |
| ·Effect on water potential | 第72-73页 |
| ·Effect on Na+, K+ uptake and Na+/K+ ratio | 第73页 |
| ·Effect on macro (N, P, S,Ca and Mg) mineral nutrition | 第73-74页 |
| ·Effect on micro (Mn, Zn, Fe and Cu) mineral nutrition | 第74-77页 |
| ·Discussion | 第77-80页 |
| ·Conclusions | 第80-81页 |
| CHAPTER 5 ALA ALLEVIATES THE MALADIES INDUCED BY SALINITY IN Brassica napus LAS REVEALED BY THE ULTRASTRUCTURAL CHANGES IN CHLOROPLAST | 第81-96页 |
| ·Introduction | 第81-82页 |
| ·Materials and methods | 第82-85页 |
| ·Plant material and treatment conditions | 第82-83页 |
| ·Determination of photosynthetic pigments | 第83-84页 |
| ·Photosynthetic efficiency measurement | 第84页 |
| ·Transmission electron microscopy | 第84页 |
| ·Statistical analysis | 第84-85页 |
| ·Results | 第85-91页 |
| ·Plant growth indices | 第85页 |
| ·Photosynthetic pigments content | 第85-86页 |
| ·Photosynthetic efficiency | 第86-87页 |
| ·Morphometric changes in whole mesophyll cells and chloroplasts | 第87-88页 |
| ·Ultrastructural changes in whole mesophyll cells | 第88页 |
| ·Ultrastructural changes in chloroplasts | 第88-91页 |
| ·Discussion | 第91-94页 |
| ·Conclusions | 第94-96页 |
| CHAPTER 6 MAJOR FINDINGS AND FUTURE PERSPECTIVES | 第96-98页 |
| ·Major findings | 第96-97页 |
| ·Future perspectives | 第97-98页 |
| CHAPTER 7 REFERENCES | 第98-117页 |
| LIST OF PUBLICATONS | 第117-118页 |
