The monograph entitled “Global warming and crops” describes the normal historical shifts in the earth’s atmospheric temperature and weighs the evidence concerning anthropogenic induced changes in the level of temperature. There is not much study to explain the shift in temperature since the ice age, whereas the subsequent unprecedented increase in the earth’s temperature after pre industrial period has been possibly related to the anthropogenic activities. This rise in temperature has become a great threat to the productivity of crop plants. The increase in temperature has affected the crop calendar of tropical and temperate regions of the world by reducing the length of effective growing season of crops. This monograph will give an overview of the global as well as Indian crops productivity in relation to the rise in the earth’s surface temperature. The variability of past temperature changes and that of after industrial revolution has been discussed in relation to the crop productivity and food security of the region. A chapter in this monograph is on the technologies to study the response of crop plants to the elevated temperature. The innovative approaches have been described for the long term experiments to investigate the life time responses of crop plants to the rise in temperature. Phytotrones, Temperature gradient chambers, Temperature gradient Greenhouses (TGG), Soil plant atmosphere research (SPAR) system, Temperature- Free air CO2
enrichment technology (T- FACE), Infra red warming technology (IRWT), Free Air Temperature Enrichment Technologies (FATE) and Soil warming systems (SWS) to simulate anthropogenic climate warming are described in this chapter.
The impact assessment analysis of rising temperature on crops such as wheat, rice, maize, soybean, cotton and brassica are described, reviewed and discussed in separate chapters as case studies. The responses of physiological processes and biochemical reactions to the elevated temperature in crop plants are described crop wise. The effect of elevated temperature on the growth and development of crop plants has been discussed in relation to their phenological stages. The monograph also includes the impact of elevating temperature on crop weed interaction, pest and diseases and soil dynamics for each crop species independently. The mitigation technologies to counter the adverse effect of high temperature stress are described for each crop according to their cultivation and climatic conditions. The future research strategies for each crop to meet the threat of elevating temperature on crop productivity and food security is described and discussed.
The monograph will help in getting the detailed account on the historical analysis of the exponential rise in the temperature of the earth to the writers of climate change. The agricultural and environmental scientists will get the explanations of the phenological changes caused b