Cotton Organogenesis in Relation to Temperature and Solar Ra

发布时间：2021-04-15 00:27

　　为研究温度（有效积温,AET）和太阳辐射（SR）对棉花器官发育的影响,采用大田试验于2015-2016年华中农业大学试验农场进行,供试品种为华棉3109（V1,常规棉,2015、2016）和华杂棉H318（V2,杂交棉,2015）,设置3个播期,分别为S1（4月25日）,S2（5月16日）,S3（6月6日）。播种前在大田放置4个温湿度记录仪,并固定在3 m长的竹竿顶端,每小区中间行固定连续10株进行调查,每3–5 d以株式图的方式记录棉花株高,果节、节位状态。结果表明:1温度和太阳辐射对棉花生育进程影响显著。2015年S1播种后8 d出苗,而S2、S3播种后5 d出苗,V1 AET和SR最低,分别为66.6DD、150.9 MJ m^-2。苗期,S1播种后40 d AET和SR最高,为463DD和710.3 MJ m^-2,然而蕾期与S1相比S3的平均日积温最大,花铃期S3 44 d内AET和SR分别为698DD和782 MJ m^-2,在整个生育进程中,2015年V1与V2差异不大,但V1年际之间差异显著。2 2015年,V... 

【文章来源】：华中农业大学湖北省 211工程院校 教育部直属院校

【文章页数】：88 页

【学位级别】：硕士

【文章目录】：
Abstract
摘要
1 Introduction
    1.1 Cotton and temperature
    1.2 Solar radiation
    1.3 Aims and significance
2 Materials and methods
    2.1 Location of experiment
    2.2 Experimental design
    2.3 Crop and fertilizers management
    2.4 Data collection
        2.4.1 Weather data
        2.4.2 Plant mapping
        2.4.3 Growth stage and organs development
            2.4.3.1 Growth stages
            2.4.3.2 Organs development
        2.4.4 Data analysis
        2.4.5 Accumulated effective temperature （AET）
        2.4.6 Solar radiation data （SR）
3 Results
    3.1 Temperature and solar radiation
        3.1.1 Total of AET and SR
        3.1.2 Total of AET at day （AETD） and AET at night （AETN）
    3.2 Effect of temperature and solar radiation on cotton growth stages
    3.3 Effect of temperature and solar radiation on cotton main stem
        3.3.1 Plant height and diameter
        3.3.2 Plant node
        3.3.3 AET and SR for main stem growth
    3.4 Effect of temperature and solar radiation on cotton main stem leaf
        3.4.1 Leaf life
        3.4.2 Days from senescence to fallen
    3.5 Effect of temperature and solar radiation on cotton square
        3.5.1 Vertical appearance
        3.5.2 Horizontal appearance
    3.6 Effect of temperature and solar radiation on cotton flower
        3.6.1 Vertical appearance
        3.6.2 Horizontal appearance
    3.7 Open boll appearance
        3.7.1 Vertical appearance
        3.7.2 Horizontal appearance
4 Discussion
5 Conclusion
6 References
7 Appendices
Acknowledgement



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