| 英文摘要 | 第1-12页 |
| 中文摘要 | 第12-14页 |
| Chapter one Literature Review | 第14-35页 |
| 1．1 Advance in Physiological Study of Crop Yield Formation | 第14-21页 |
| 1．2 The Heterosis of Crops and Its Utilization | 第21-26页 |
| 1．3 The Situation and Problems in the Utilization of Cotton Heterosis | 第26-30页 |
| References | 第30-35页 |
| Chapter two Characterization of Growth and Some Physiological Traits in Hybrid Cotton Zheza 166 | 第35-51页 |
| 2．1 Materials and Methods | 第36-38页 |
| 2．1．1 Materials and planting methods | 第36-37页 |
| 2．1．2 The items and methodology of measurement | 第37-38页 |
| 2．1．2．1 The time-dependent growth and development | 第37页 |
| 2．1．2．2 Yield components and fiber quality | 第37页 |
| 2．1．2．3 Chlorophyll and nutrient contents | 第37页 |
| 2．1．2．4 Chlorophyll fluorescence and photosynthetic characters | 第37-38页 |
| 2．1．2．5 Biomass and nutrient accumulation | 第38页 |
| 2．2 Results and Analysis | 第38-48页 |
| 2．2．1 Agronomic characters | 第38-41页 |
| 2．2．1．1 Leaf initiation rate and plant height gain per day | 第38-40页 |
| 2．2．1．2 The dynamics of square and boll number per plant | 第40-41页 |
| 2．2．2 Yield and fiber quality | 第41-43页 |
| 2．2．3 Physiological characters | 第43-48页 |
| 2．2．3．1 N and P contents | 第43-44页 |
| 2．2．3．2 Chlorophyll content, fluorescence parameters and photosynthetic traits | 第44-47页 |
| 2．2．3．3 Biomass | 第47-48页 |
| 2．3 Discussions | 第48-50页 |
| References | 第50-51页 |
| Chapter three The Effect of Agronomic Factors on Lint Yield and Quality of Hybrid Cotton Zheza 166 | 第51-66页 |
| 3．1 Materials and Methods | 第53-55页 |
| 3．1．1 Materials and planting methods | 第53-54页 |
| 3．1．2 Measurements | 第54-55页 |
| 3．2 Results and Analysis | 第55-63页 |
| 3．2．1 Effect of agronomy practices on yield components | 第55-60页 |
| 3．2．2 Effect of agronomy practices on lint yield | 第60-61页 |
| 3．2．3 Effect of agronomy practices on fiber quality | 第61-63页 |
| 3．2．4 Effect of agronomy practices on chlorophyll content | 第63页 |
| 3．3 Discussion and Conclusions | 第63-65页 |
| References | 第65-66页 |
| Chapter four Analysis of Heterosis in Some Growth Characters and Enzymes for Hybrid Cotton Zheza 166 | 第66-77页 |
| 4．1 Materials and Methods | 第67-69页 |
| 4．1．1 Materials and planting methods | 第67-68页 |
| 4．1．2 Measurements | 第68-69页 |
| 4．1．2．1 Chlorophyll content | 第68页 |
| 4．1．2．2 Biomass and leaf area index | 第68页 |
| 4．1．2．3 SOD, POD activities and MDA content | 第68-69页 |
| 4．2 Results and Analysis | 第69-74页 |
| 4．2．1 SPAD value | 第69-70页 |
| 4．2．2 SOD, POD activities and MDA content | 第70-73页 |
| 4．2．2．1 SOD activity | 第70-71页 |
| 4．2．2．2 POD activity | 第71-72页 |
| 4．2．2．3 MDA content | 第72-73页 |
| 4．2．3 Dry matter accumulation and distribution | 第73页 |
| 4．2．4 Yield and yield component | 第73-74页 |
| 4．3 Discussion | 第74-76页 |
| References | 第76-77页 |
| LIST OF TABLES | 第77-78页 |
| LIST OF FIGURES | 第78页 |
