| 摘要 | 第7-9页 |
| Abstract | 第9-10页 |
| CHAPTER I LITERATURE REVIEW | 第11-33页 |
| 1.1 Background | 第11-12页 |
| 1.2 Rapeseed | 第12-15页 |
| 1.2.1 Taxonomy of rapeseed | 第12页 |
| 1.2.2 Origin of rapeseed | 第12-13页 |
| 1.2.3 History of rapeseed cultivation | 第13-14页 |
| 1.2.4 Development of double zero varieties | 第14-15页 |
| 1.3 Uses of rape | 第15-17页 |
| 1.3.1 Uses of rape oil | 第15-16页 |
| 1.3.2 Uses of rape meal | 第16页 |
| 1.3.3 Use as bio-fuel | 第16-17页 |
| 1.4 Global production of rapeseed | 第17-18页 |
| 1.5 Rapeseed production and distribution of area in china | 第18-21页 |
| 1.5.1 Planting area, yield and production | 第18-20页 |
| 1.5.2 Ecological distribution and regions | 第20-21页 |
| 1.6 Main rapeseed varieties and hybrids | 第21-22页 |
| 1.7 Quality characteristics of rapeseed | 第22-23页 |
| 1.7.1 Oil Content | 第22页 |
| 1.7.2 Fatty acid composition | 第22-23页 |
| 1.7.3 Protein content | 第23页 |
| 1.8 Problems for rapeseed production in china | 第23-24页 |
| 1.9 Rapeseed production techniques | 第24-28页 |
| 1.9.1 Crop establishment | 第24页 |
| 1.9.2 Nitrogen management | 第24-27页 |
| 1.9.3 Effect of planting density | 第27-28页 |
| 1.10 Lodging | 第28-32页 |
| 1.10.1 Lodging phenomena | 第28-29页 |
| 1.10.2 Timings of lodging | 第29页 |
| 1.10.3 Factors involved in lodging | 第29-30页 |
| 1.10.4 Lodging induced yield losses | 第30-31页 |
| 1.10.5 Lodging induced reduction in oil content and grain quality | 第31-32页 |
| Research Objectives | 第32-33页 |
| CHAPTER II OPTIMIZATION OF NITROGEN RATE AND PLANTING DENSITYFOR IMPROVING YIELD, NITROGEN USE EFFICIENCY AND LODGINGRESISTANCE IN OILSEED RAPE | 第33-55页 |
| 2.1 Introduction | 第33-34页 |
| 2.2 Materials and methods | 第34-38页 |
| 2.2.1 Site characteristics and field trial management | 第34-35页 |
| 2.2.2 Meteorological conditions | 第35页 |
| 2.2.3 Seed yield and yield-related traits | 第35-37页 |
| 2.2.4 Lodging resistance, lodging resistance index (LRI), and lodging-relatedmorphological traits | 第37页 |
| 2.2.5 Nitrogen use efficiency, net photosynthetic rate and light interception ratio(LIR) | 第37-38页 |
| 2.2.6 Statistical analysis | 第38页 |
| 2.3 Results | 第38-51页 |
| 2.3.1 Morphological traits of rapeseed at wintering stage under different density andnitrogen rates | 第38-41页 |
| 2.3.2 Yield, yield-related and morphological traits of rapeseed at maturity stage underdifferent density and nitrogen rates | 第41-51页 |
| 2.4 Discussion | 第51-54页 |
| 2.5 Conclusion | 第54-55页 |
| CHAPTER III ALTERATION IN YIELD AND OIL QUALITY TRAITS OF WINTERRAPESEED BY LODGING AT DIFFERENT PLANTING DENSITY AND NITROGENRATES | 第55-83页 |
| 3.1 Introduction | 第55-57页 |
| 3.2 Materials and Methods | 第57-61页 |
| 3.2.1 Site characteristics and field trial management | 第57-58页 |
| 3.2.2 Identification of the critical pod-filling stage | 第58-59页 |
| 3.2.3 Identification of the critical lodging angle | 第59页 |
| 3.2.4 Data collection | 第59-61页 |
| 3.2.5 Statistical analyses | 第61页 |
| 3.3 Results | 第61-78页 |
| 3.3.1 Humidity and air temperature in relation to lodging angles | 第61-63页 |
| 3.3.2 Humidity and air temperature in relation to density and nitrogen rates | 第63页 |
| 3.3.3 Changes in yield, yield components and plant growth traits of rapeseed inrelation to lodging stage, plant density, and N rate | 第63-69页 |
| 3.3.4 Changes in yield, yield components, and plant growth traits in relation tolodging angle, plant density, and N rate | 第69-76页 |
| 3.3.5 Seed quality traits and fatty acid composition in relation to lodging stage,lodging angle, plant density, and N rate | 第76-78页 |
| 3.4 Discussion | 第78-82页 |
| 3.5 Conclusions | 第82-83页 |
| CHAPTER IV SUMMARY AND OUTLOOK | 第83-86页 |
| References | 第86-103页 |
| Publications | 第103-104页 |
| Acknowledgements | 第104-105页 |
