A new study has found that the quality of rice in East Asia is deteriorating due to global warming.
Dr. Xianfeng Liu from Shaanxi Normal University in China and his colleagues collected more than 35 years of data on rice quality in Japan and China.
The data was based on the Head Rice Rate (HRR), which measures rice grains passing through the mill with up to 75 percent of their length remaining after being processed, and husks during the process. And the bran is removed.
The team of researchers found that several factors of climate change are seriously affecting HRR. These factors include night temperature, day temperature, daily temperature, average daily temperature, hot days (more than 35/30 degrees Celsius), rainfall, soil moisture, solar radiation, clouds, relative humidity. , included daytime evapotranspiration, transcription and carbon dioxide uptake.
Scientists eventually determined that nighttime temperatures were the main cause of rice deterioration. With particularly warm nighttime temperatures, standards begin to drop to 12 degrees Celsius and 18 degrees Celsius in Japan and China, respectively.
When flowering and kernel development occur under these conditions, the rate of starch accumulation and starch accumulation in the kernel decrease, reducing rice quality and increasing the likelihood of kernel breakage.
The research was published in Geophysical Research Letters.
