文摘
英文文摘
基金项目
List of abbreviations
CHAPTER 1 Introduction
1.1.Global warming
1.2.Trends of global warming in China
1.3.Global warming and agriculture
1.4.Global warming and rice productivity
1.5.High temperature and rice grain quality
1.5.1.Rice milling quality in relation to high temperature
1.5.2.Physical appearance of the grains as affected by high temperature
1.5.3.Cooking and sensory properties in relation to high temperature
1.6.Growth regulators and crops productivity under high temperature
1.7.Rice and plant growth regulators
1.8.Rice panicle morphology and architecture
1.9.Objectives of the trials
1.10.Research project grant
CHAPTER 2 Impact of high-temperature stress on rice plant and its traits related to tolerance(A review published in Journal of Agricultural Science)
2.1.Summary
2.2.Introduction
2.3.High temperature in relation to growth and development of rice plant
2.4.High temperature and spikelet sterility
2.4.1.Mechanism of heat induced floret sterility
2.4.2.Pollination in relation to spikelet fertility at high temperature
2.4.3.Role of humidity in spikelet sterility at high temperature
2.5.Physiological and biochemical mechanisms of heat tolerance
2.5.1.Role of HSPs in inducing thermo-tolerance
2.5.2.Factors other than HSPs contributing to thermo-tolerance
2.6.Traits related to tolerance of high temperature stress
2.6.1.Plant architecture
2.6.2.Time of flowering and anthesis
2.6.3.Length of anther
2.6.4.Size of basal pore
2.6.5.Length of basal dehiscence of anther
2.7.Interactive effect of temperature with other climatic factors on rice
2.8.Mitigating strategies for the forthcoming warmer climate
2.8.1.Breeding perspective
2.8.2.Management Options
CHAPTER 3 Ecotype and cultivar based variation in response of rice cultivars to various high temperature treatments
3.1.Introduction
3.2.Materials and methods：
3.2.1.Crop husbandry
3.2.2.Experimental design and temperature treatments
3.2.3.Antioxidant enzyme superoxide dismutase(SOD)activity and plant height
3.2.4.Yield and its components
3.2.5.Biomass and harvest index
3.2.6.Data Analysis
3.3.Results
3.3.1.Temperature increment
3.3.2.Superoxide dismutase(SOD)
3.3.3.Plant height at maturity
3.3.4.Grain yield
3.3.5.Grain yield components
3.3.6.Total aboveground biomass and harvest index
3.4.Discussion
3.5.Conclusion
CHAPTER 4 Rice grain quality in a short-term global warming scenario：Exploring the differential role of near 2℃ elevated maximum，mean and minimum temperatures
4.1.Introduction
4.2.Materials and methods
4.2.1.Crop husbandry
4.2.2.Grain qualitative traits
4.2.3 Data Analysis
4.3.Results
4.3.1.Temperature increase
4.3.2.Grain dimensions：width，length，area and length to width ratio
4.3.3.Chalkiness related parameters and other qualitative traits
4.4.Discussion
4.5.Conclusion
CHAPTER 5 Positional variation in terms of weight，fertility and distribution of rice grains on panicle axis under different temperature regimes and plant growth regulators
5.1.Introduction
5.2.Materials and Methods
5.2.1.Experimental details
5.2.2.Chemical treatments
5.2.3.Panicle related traits
5.3.Results
5.3.1.Panicle length
5.3.2.Spikelets distribution pattern on panicle
5.3.3.Grain weight at different positions on panicle under different temperature regimes and plant growth regulators
5.3.4.Heat susceptibility index for weight of grains at different positions on panicle axis under various temperatures and growth regulators
5.3.5.Variations in fertility of spikelets at different positions on panicle axis under various temperatures and growth regulators
5.3.6.Heat susceptibility index for fertility of grains at different positions on panicle axis under various temperatures and growth regulators
5.4.Discussion
5.5.Conclusion
CHAPTER 6 Effect of glycine betaine and salicylic acid on quality related attributes of various rice varieties under different temperatures
6.1.Introduction
6.2.Materials and methods
6.3.Results
6.3.1.Chalkiness related traits
6.3.2.Grain dimensions
6.4.Discussion
6.5.Conclusion
CHAPTER 7 Physiological and biochemical changes in rice associated with high night temperature and their amelioration by exogenous ascorbic acid(vitamin C)
7.1.Introduction
7.2.Materials and methods
7.2.1.Plant growth
7.2.2.Ascorbic acid plus temperature treatments
7.2.3.Lipid per oxidation and anti-oxidant enzymes
7.2.4.Sodium and potassium ions determination and leaf stomatal conductance
7.2.5.Statistical analysis
7.3.Results and discussion
7.3.1.Lipid peroxidation and anti-oxidant enzymes
7.3.2.Leaf stomatal conductance(gs)
7.3.3.Sodium and potassium ions content
7.3.4.Relationship between Pottasium ion and malondialdehyde，and peroxdase and stomatal conductance
7.4.Conclusion
References
Acknowledgement
Scientific contribution
