Damage of wheat and barley in 1998 harvest year by unusual weather in Kyushu and Yamaguchi districts

摘要

In Kyushu and Yamaguchi districts of Japan, poor emergence of wheat and barley was caused by persistent rain in November 1997. The rain and high temperature at the reproductive stage also caused injury and scab (Gibberella zeae) problems, decreasingthe yield and quality of wheat and barley. The crop situation index of two-rowed barley in Kumamoto Prefecture was only 8, while that in each prefecture in northern Kyushu district was 50-60. The survey for the agricultural union in Fukuoka Prefecture showed that the yield of two-rowed barley was 48 kg/10a, which was about 14% of that in a normal year.