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水培条件下玉米耐低磷的种质资源评价

中国农业科学院博士学位论文评阅人、答辩委员会签名表第5-6页
摘要第6-7页
Abstract第7-8页
Abbreviations第9-11页
SI Unites第11-16页
Chapter 1 General introduction第16-24页
    1.1 Significance of phosphorus第16页
    1.2 Phosphorus dynamics in soil第16-17页
    1.3 Mechanism of phosphorus efficiency in maize第17-20页
        1.3.1 Root architecture system(RAS)第18-19页
        1.3.2 Root-shoot ratio第19页
        1.3.3 Root hairs第19-20页
    1.4 Morpho-physiological responses associated with P-starvation in maize第20-22页
    1.5 Quantitative trait loci(QTL) of low-P tolerance in maize第22页
    1.6 Objectives of the study第22-24页
Chapter 2 Evaluation of maize germplasm for low-phosphorus tolerance第24-45页
    2.1 Summary第24-25页
    2.2 Introduction第25页
    2.3 Objectives第25-26页
    2.4 Materials and methods第26-29页
        2.4.1 Plant materials第26页
        2.4.2 Plant growth condition第26-27页
        2.4.3 Statistical analysis第27-29页
            2.4.3.1 Multivariate analysis第27-28页
            2.4.3.2 Genotype by trait interaction(G×T)biplot第28页
            2.4.3.3 Calculation of multi-trait selection index第28-29页
    2.5. Results第29-45页
        2.5.1 Descriptive statistic of the traits第29页
        2.5.2 Analysis of variance and frequency distribution of traits第29-34页
        2.5.3 Heritabilities estimated第34页
        2.5.4 Variance components第34页
        2.5.5 Genotypic and phenotypic correlation coefficients under LP第34-35页
        2.5.6 Genotypic and phenotypic correlation coefficients under NP第35-36页
        2.5.7 BLUP analysis第36页
        2.5.8 Multivariate analysis第36-39页
        2.5.9 Genotype by trait interactions第39页
        2.5.10 Selection of germplasm with a multi-trait index第39-43页
        2.5.11 LP tolerance and P responsiveness第43-45页
Chapter 3 High-throughput root network system analysis for low phosphorus tolerance in maize第45-67页
    3.1 Summary第45-46页
    3.2 Introduction第46-47页
    3.3 Materials and methods第47-54页
        3.3.1 Plant materials第47页
        3.3.2 Plant growth condition第47-48页
        3.3.3 Camera arrangements第48页
        3.3.4 Imaging system第48页
        3.3.5 Image acquisition and analysis第48页
        3.3.6 Image processing via segmentation-extracting roots from background第48-49页
        3.3.7 Trait estimation第49页
        3.3.8 Output第49页
        3.3.9 Recorded data第49-53页
        3.3.10 Statistical analysis第53-54页
    3.4 Results第54-67页
        3.4.1 Descriptive statistic and analysis of variance第54页
        3.4.2 Analysis of variance and broad-sense heritability estimated第54页
        3.4.3 Variance components第54-55页
        3.4.4 BLUP analysis第55页
        3.4.5 Multivariate analysis第55-64页
        3.4.6 Genotype by trait interactions第64-67页
Chapter 4 General discussion, conclusions and perspectives第67-72页
    4.1 General discussion第67-69页
    4.2 General conclusions and perspectives第69-72页
References第72-79页
Appendices第79-82页
Acknowledgements第82-83页
Papers published or in preparation from PhD research第83页

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