本研究旨在篩選各種植物生物調(diào)節(jié)劑作為添加劑,檢測其在無土栽培條件下通過根系施用對黃瓜生長的影響;然后探究最佳三種添加劑腐胺（Put）、細胞分裂素（MT）、油菜素內(nèi)酯（EBR）復(fù)混配比對黃瓜生長生理形態(tài)及根系活力的影響;最后,研究（5 mM Put+0.02 ppm MT+0.001 ppm EBR）對鹽脅迫下黃瓜抗氧化酶的影響,并研究其對鹽脅迫下黃瓜植株產(chǎn)量,果實品質(zhì)和碳氮代謝的影響。1-試驗一、不同生長調(diào)節(jié)劑對黃瓜植株生長的影響本試驗共設(shè)15個處理:T1（水）、T2（10mM腐胺）、T3（250 ppm海藻素）、T4（0.02ppm細胞分裂素）、T5（100ppm萘乙酸）、T6（400 ppm聚天冬氨酸）、T7（50ppm硝基苯酚鈉）、T8（100ppm L-色氨酸）、T9（1%腐殖酸）、T10（10⁷CFU/ml枯草芽孢桿菌）、T11（10⁶CFU/ml木霉菌）、T12（50 ppm L-丙氨酸）、T13（150 ppm水楊酸）、T14（1mM納米硅）和T15（0.001 ppm油菜素內(nèi)酯）,將上述生物調(diào)節(jié)劑分別加入基質(zhì)中混勻,裝盆,定植... 

【文章來源】：中國農(nóng)業(yè)科學(xué)院北京市

【文章頁數(shù)】：104 頁

【學(xué)位級別】：博士

【文章目錄】：
摘要
Abstract
LIST OF ABBREVIATIONS
CHAPTER 1 INTRODUCTION
    1.1 Cumcumber(cucumis sativus L.)
    1.2 Soilless plant cultivation system
    1.3 Plant bio-stimulants
    1.4 Effect of salinity stress
    1.5 Nitrogen assimilation and enzymes activities
        1.5.1 Assimilation of inorganic nitrogen into glutamine and glutamate
        1.5.2 Primary nitrogen assimilation
        1.5.3 Glutamine synthase
        1.5.4 Glutamate synthase
        1.5.5 Glutamate dehydrogenase
    1.6 Nitrogen carbon metabolism relationship
    1.7 Significance of the Study
    1.8 Objectives of the Study
CHAPTER 2:Effect of Various Plant Bio-stimulants on Cucumber Growth
    2.1 Summary
    2.2 Introduction
    2.3 Materials and methods
        2.3.1 Experiment treatments
        2.3.2 Morphological parameters
            2.3.2.1 Plant growth
            2.3.2.2 Seedling vigor index(SVI)
        2.3.3 Net Photosynthetic rate
        2.3.4 Statistical Analysis
    2.4 Results
        2.4.1 Morphological parameters
            2.4.1.1 Plant height
            2.4.1.2 Leaf numbers
            2.4.1.3 Stem diameter
            2.4.1.4 Leaf area
            2.4.1.5 Cucumber seedlings vigor
        2.4.2 Shoot and root fresh weight
        2.4.3 Photosynthetic rate(Pn)after30 days
    2.5 Discussion
    2.6 Conclusion
CHAPTER 3:Effect of Plant Growth Regulators Combinations(PGRsc),on Cucumber Growth under Soilless Culture
    3.1 Summary
    3.2 Introduction
    3.3 Materials and methods
        3.3.1 Plant materials and growth condition
        3.3.2 The experiment design and treatments
        3.3.4 Morphological parameters
            3.3.4.1 Plant growth
            3.3.4.2 Seedlings vigor
        3.3.5 Physiological parameters
            3.3.5.1 Chlorophyll content
            3.3.5.2 Net photosynthetic rate(pn)
        3.3.6 Root activity(TTC)
        3.3.7 Statistical Analysis
    3.4 Results
        3.4.1 Morphological parameters
        3.4.2 Seedlings vigor index(SVI)
        3.4.3 Physiological parameters
            3.4.3.1 Total chlorophyll content
            3.4.3.2 Net photosynthetic rate(pn)
        3.4.4 Root activity
    3.5 Discussion
    3.6 Conclusion
CHAPTER 4:Effect of Plant Growth regulators Combination(PGRsc),on Antioxidant enzymes activities in Cucumber plant under NaCl stress
    4.1 Summary
    4.2 Introduction
    4.3 Materials and methods
        4.3.1 The experiment design and treatments
        4.3.3 Morphological parameters
        4.3.4 Root activity
        4.3.5 Protein content
        4.3.6 Determination of malondialdehyde(MDA)contents,proline and antioxidant enzymes activities
        4.3.7 Electrolyte leakage
        4.3.8 Data recorded and statistical analysis
    4.4 Results
        4.4.1 Morphological parameters
        4.4.2 Root activity
        4.4.3 Soluble protein content in leaves
        4.4.4 Proline content in leaves and roots
        4.4.5 Malondialdehyde(MDA)content in leaf
        4.4.6 Antioxidant enzymes activities
        4.4.7 Electrolyte leakage
    4.5 Discussion
    4.6 Conclusion
CHAPTER 5:Effect of Plant Growth Regulators Combination(PGRsc)on Nitrogen/ Carbon metabolism and Fruit Quality of Cucumber under Salt Stress
    5.1 Summary
    5.2 Introduction
    5.3 Materials and methods
        5.3.1 The experiment design and treatments
        5.3.2 Morphological parameters
        5.3.3 Determination of fruit yield and quality parameters
            5.3.3.1 Early fruit yield
            5.3.3.2 Vitamin C,soluble sugar and Protein contents in cucumber fruits
        5.3.4 Total nitrogen
        5.3.5 Nitrogen and carbohydrate enzymes
        5.3.6 Data recorded and statistical analysis
    5.4 Results
        5.4.1 Plant biomass
        5.4.2 Early fruit yield
        5.4.3 Vitamin C(AsA)
        5.4.4 Protein content
        5.4.6 Total soluble sugar
        5.4.7 Total nitrogen
        5.4.8 Nitrogen enzymes activities in leaves and roots
        5.4.9 Carbohydrate enzymes in leaves and roots
    5.5 Discussion
    5.6 Conclusion`
Chapter 6:Conclusion
REFERENCES
ACKNOWLEDGEMENTS
CURRICULUM VITAE



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