论文目录 | |
| 摘要 | 第10-13
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| Abstract | 第13-18
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| Introduction | 第18-44
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| Chapter 1 Effects of intercropping with garlic, lettuce or green cabbage on the structure of arthropod communities in Chinese cabbage fields | 第44-104
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| 1 Materials and methods | 第49-53
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| · Study site | 第49
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| · Experimental design | 第49-51
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| · Sampling methods | 第51-52
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| · Data analysis methods | 第52-53
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| 2 Results | 第53-94
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| · Structure and composition of arthropod communities in intercropping systems | 第53-54
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| · Diversity, evenness and similarity of arthropod communities in intercropping systems | 第54-58
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| · Guild structure of arthropod communities in intercropping systems | 第58-60
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| · Effects of habitat diversification on herbivorous insects | 第60-71
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| · Structure and composition of herbivorous guilds in intercropping systems | 第60-66
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| · Dominant species (taxa) of herbivorous guilds in intercropping systems | 第66
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| · Seasonal trends of major pests of herbivore guilds in intercropping system | 第66-71
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| · Effects of habitat diversification on parasitoids | 第71-79
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| · Structure and composition of parasitoid guilds in intercropping systems | 第71-74
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| · Dominant species (taxa) of parasitoid guilds in intercropping systems | 第74-76
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| · Seasonal trends of dominant parasitoids in intercropping systems | 第76-79
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| · Effects of habitat diversification on predatory insects | 第79-87
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| · Structure and composition of predatory guilds in intercropping systems | 第79-81
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| · Dominant species (taxa) of predatory guilds in intercropping system | 第81-84
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| · Seasonal trends of major predators in intercropping systems | 第84-87
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| · Effects of habitat diversification on neutral insects | 第87-94
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| · Structure and composition of neutral insect guilds in intercropping systems | 第87-90
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| · Dominantspecies (taxa) in neutral insect guilds in intercropping systems | 第90
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| · Seasonal trends in abundance of major neutral insects in intercropping systems | 第90-94
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| 3 ConclusionsandDiscussion | 第94-104
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| · Influence of intercroppingonmajorpestpopulations | 第94-97
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| · Influence of intercropping on parasitoid insects | 第97-98
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| · Influence of intercropping on predatory insects | 第98-100
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| · Influence of intercropping on neutral insects | 第100-102
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| · Conservation implication | 第102-104
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| Chapter 2 Effects of intercropping with non-crucifers on the metabolism of Chinese cabbage | 第104-136
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| 1 Materials and methods | 第108-120
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| · Crop culture | 第108-110
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| · Total soluble protein content determination | 第110
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| · Soluble sugar content determination | 第110-112
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| · Reducing sugar content determination | 第112-113
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| · Determination for nitrate nitrogen | 第113-114
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| · Pigment content determination | 第114-115
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| · Nitrate reductase (NR) activity determination | 第115-117
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| · Superoxide dismutases (SOD) activity determination | 第117-118
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| · Peroxidases (POD) activity determination | 第118
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| · Catalase (CAT) activity determination | 第118-119
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| · Statistical analysis | 第119-120
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| 2 Results | 第120-129
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| · Total Soluble protein content | 第120
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| · Soluble sugar content | 第120-123
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| · Reducing sugar content | 第123
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| · Nitrate nitrogen content | 第123-124
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| · Chlorophyll concentration | 第124-125
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| · Nitrate reduetase (NR) activity | 第125-126
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| · Superoxide dismutases (SOD) activity | 第126-127
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| · Peroxidases (POD) activity | 第127
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| · Catalase (CAT) activity | 第127-129
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| 3 Discussion | 第129-136
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| · Influence of intercropping on chemical compounds of Chinesecabbage | 第129-132
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| · Influence of intercropping on enzyme activity of Chinese cabbage | 第132-134
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| · intercropping complication | 第134-136
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| Chapter 3 Effects of intercropping of garlic or lettuce with Chinese cabbage on the growth and development of Plutella xylosteUa (Lepidoptera: Plutellidae) | 第136-156
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| 1 Materials and methods | 第140-143
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| · Intercropping arrangement | 第140
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| · Insect collection | 第140-141
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| · Larval growth and development | 第141
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| · Pupal growth and development | 第141-142
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| · Oviposition duration and fecundity of adult | 第142
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| · Mortality and duration of eggs | 第142
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| · Data analyses | 第142-143
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| 2 Results | 第143-151
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| · Larval duration and pupation percentage | 第143-145
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| · Pupal duration and weight | 第145-146
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| · Oviposition duration and fecundity of adults | 第146-149
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| · Duration and mortality of egg | 第149-151
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| 3 Conclusions and Discussion | 第151-156
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| Chapter 4 Diamondback Moth's enzyme activity in response to intercropping | 第156-171
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| 1 Materials and Methods | 第160-164
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| · Insects | 第160-161
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| · Reagents | 第161
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| · Crude enzyme preparation | 第161-162
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| · Assay on AChE (acetylcholinesterase) activity | 第162
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| · Assay on CarE (carboxylesterase) activity | 第162
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| · Assay on GST (glutathione S-transferase) activity | 第162-163
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| · Protein content bioassay | 第163
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| · Statistical analysis | 第163-164
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| 2 Results | 第164-166
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| · Standard curve of protein content assay and validation | 第164
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| · Effects of intercropping on AChE activity of DBM | 第164-165
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| · Effects of intercropping on CarE activity of DBM | 第165
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| · Effects of intercropping on GST activity of DBM | 第165-166
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| 3 Conclusions and Discussion | 第166-171
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| Summary | 第171-175
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| References Cited | 第175-208
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| Appendix 1 Species and abundance of the arthropod communities in the vegetable fields from October to December in 2004,Langqi,China | 第208-213
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| Appendix 2 Lethal effects of pyrethrins on the spruce budworm (Lepidoptera:Tortricidae) | 第213-226
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| Appendix 3 Larval susceptibility of Hemlock looper (Lepidoptera:Geometridae) to two botanical insecticides | 第226-237
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| Appendix 4 Laboratory bioassays testing the fungus,Entomophthora sphaerosperma,as a mortality agent of the eastern hemlock looper,Lambdina fiscellaria fiscellaria (Lepidoptera:Geometridae) | 第237-251
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| Acknowledgments | 第251-256页 |
