Quantifying the effects of short-term heat stress at booting

发布时间：2024-04-22 19:29

　　Extreme heat stress events are becoming more frequent under anticipated climate change,which can have devastating impacts on rice growth and yield. To quantify the effects of short-term heat stress at booting stage on nonstructural carbohydrates(NSC) remobilization in rice, two varieties(Nanjing 41 and Wuyunjing 24) were subjected to 32/22/27 °C(maximum/minimum/mean), 36/26/31 °C, 40/30/35 °C, and 44/34/39 °C for 2, 4 and 6 days in phytotrons at booting stage during 2014 and 2015. Yield and yiel...

【文章页数】：19 页

【文章目录】：
1. Introduction
2. Materials and methods
    2.1. Experimental site description
    2.2. Experimental design and treatments
    2.3. Data measurement
    2.4. Heat stress indices
    2.5. Statistical analysis
3. Results
    3.1. Effects of heat stress on grain yield and yield components
    3.2. Effects of heat stress on dry matter production
        3.2.1. Effects of heat stress on photosynthetic efficiency
        3.2.2. Effects of heat stress on dry matter accumulation and partitioning
    3.3. Dynamics of NSC concentration in leaves,stems,and panicles
    3.4. Effects of heat stress on NSC accumulation and translocation
    3.5. Quantification of the effects of heat stress on NSC translocation
4. Discussion
    4.1. Effects of heat stress at booting on rice yield and yield components
    4.2. Source-sink related NSC remobilization
    4.3. Quantification of the effects of heat stress
    4.4. Heat tolerance of varieties
    4.5. Remaining challenges
5. Conclusions
Declaration of competing interest



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