| 1. Introduction | 第1-29页 |
| ·Reviews | 第14-25页 |
| ·History | 第14-15页 |
| ·Present | 第15-25页 |
| ·SA Biosynthesis | 第15-16页 |
| ·Physiological Functions | 第16-19页 |
| ·Mechanism of SA in plants | 第19-25页 |
| ·Importance of SA and fruit physiological indexes | 第25-27页 |
| ·Huang Kum pear and SA | 第27-28页 |
| ·Objectives | 第28-29页 |
| 2. Materials and Methods | 第29-40页 |
| ·Materials | 第29页 |
| ·Methods | 第29-39页 |
| ·Fruit disc dip (TD) | 第29-38页 |
| ·SOD (Superoxide dismulase) activity | 第30-32页 |
| ·POD (Peroxidase) aclivity assay | 第32-33页 |
| ·MDA (Malondialdehyde) Content determination | 第33-34页 |
| ·PME (Pectinmethylesterase) activity analysis | 第34-35页 |
| ·PG (Polygalacturonase) activity check | 第35-36页 |
| ·LOX (Lipoxidase) activity test | 第36-37页 |
| ·Ethylene gas (C_2H_4) production of fruit disc | 第37页 |
| ·Fruit disc respiration | 第37-38页 |
| ·Fruit dip (TF) | 第38-39页 |
| ·Fruit respiration | 第38页 |
| ·Fruit Water loss | 第38-39页 |
| ·Hardness/firmness of the fruit | 第39页 |
| ·Statistical analysis | 第39-40页 |
| 3. Results | 第40-55页 |
| ·Effect of SA on SOD activity of Huang Kum Pear disc | 第40-41页 |
| ·Effect of SA on POD activity of Huang Kum Pear disc | 第41-42页 |
| ·Effect ofSA on MDA contents of Huang Kum Pear disc | 第42-44页 |
| ·Effect of SA on PME activity of Huang Kum Pear disc | 第44-45页 |
| ·Effect of SA on PG activity of Huang Kum Pear disc | 第45-46页 |
| ·Effect of SAon LOX activity of Huang Kum Pear disc | 第46-47页 |
| ·Effect of SAon ethylene gas (C2H4) production of Huang Kum Pear discs | 第47-48页 |
| ·Effect of SA on respiration rate of Huang Kum Pear discs | 第48-49页 |
| ·Effect of SA on respiration rate of Huang Kum Pear fruit | 第49-50页 |
| ·Effect of SA on water loss of Huang Kum Pear fruit | 第50-52页 |
| ·Effect of SA on firmness of Huang Kum Pear fruit | 第52-55页 |
| 4. Discussion | 第55-62页 |
| ·Relationship of SA with different enzyme activities during fruit senescence | 第55-56页 |
| ·SOD activity | 第55页 |
| ·POD activity assay | 第55-56页 |
| ·MDA contents | 第56页 |
| ·Regulating effect of SA on cell wall hydrolytic enzymes in fruit senescence | 第56-58页 |
| ·PME activity | 第56-57页 |
| ·PG activity analysis | 第57页 |
| ·LOX activity | 第57-58页 |
| ·Fruit physiological characteristics during senescence as influenced by SA | 第58-62页 |
| ·Ethylene gas production | 第58-59页 |
| ·Respiration | 第59页 |
| ·Water loss | 第59-60页 |
| ·Firmness | 第60-62页 |
| 5. Conclusion | 第62-65页 |
| Reference | 第65-78页 |
| Personal information | 第78-80页 |
| Acknowledgements | 第80-81页 |
