[O31] Temperature Stress

[O31-01] High-Temperature Impacts on Rice Quality and Adaptation Strategy of Rice Production for Climate Change in Taiwan

(Invited Speaker)

^○Huu-Sheng Lur¹ (1.Department of Agronomy, College of Bioresources and Agriculture, National Taiwan University, Taiwan, 2.Agronomy Society of Taiwan, Taiwan)

High temperature is the one of major factors affecting both the yield and quality of rice production in Taiwan. The warming rate and the frequency of heat waves in Taiwan are higher than that of global average. In the report, the integrated responses of rice quality and physiology during grain development under high temperature will be presented. High temperature induced fluctuations in peroxidation, energy balance, hormones level, carbon/nitrogen shuttle, cell acidity, cell death, starch and protein accumulation; and thus this could result in lowering the rice quality by inducing chalkiness and weight reduction of rice grains. Key adaptation measures including changes of cultivation timing, planting density, and nitrogen application are proposed by the present study. Furthermore, area suitability for rice production across the whole island of Taiwan was evaluated based on the projection of the climate change scenario in the future. Results were used for proposing an adaptation strategy of rice production/industry for coping with the ongoing climate change.