ODESSA, May 29 - Ukraine appears increasingly likely to prolong grain export quotas as severe drought threatens the 2007 harvest, prompting industry analysts on Tuesday to slash forecasts for exports in the 2007/08 season.

APK-Inform consultancy revised down its 2007 grain crop forecast to 33.3 million metric tons from 34.3 million last year due to a nationwide drought that Ukraine's top weather forecaster said was affecting 60 percent of winter and spring grains.