Tag Archives: nighttime temperatures

Cold nighttime temps during booting may affect rice yields

• By Bruce Linquist • The period between panicle initiation (PI) and heading is critical with respect to grain formation. During this time, cold temperatures can result in pollen sterility as the plants go through meiosis. Pollen sterility results in blanking. Nighttime temperatures below 58 degrees Fahrenheit can result in sterility. The figure below shows the relationship between average low ... Read More »

Arkansas scientists investigate effects of high night temperatures on rice quality

rice growth chambers

Arkansas scientists are working to develop rice varieties that are tolerant of Arkansas’ frequent high nighttime air temperatures, a condition that can significantly reduce yields and post-harvest quality. Paul Counce, a University of Arkansas System Division of Agriculture professor and rice physiologist, is leading the high nighttime air temperature rice research in the division’s Arkansas Agricultural Experiment Station. “We began ... Read More »

New University of Arkansas greenhouse will aid nighttime temperature studies

new university of arkansas greenhouse

A research greenhouse formally opened Aug. 2 further aids University of Arkansas efforts to stem yield loss after milling due to high nighttime temperatures. Jay Coker, chairman of the Rice Research and Promotion Board, says the need for an advanced facility to help develop resilient rice varieties became apparent after Arkansas rice producers lost yield after milling due to high ... Read More »