<正> Early cultivator Zhongzao 1 (indica) and late rice cultivar Xiushui 2 (japonica) were used for field experiments. Seedlings were transplanted on May 13 and
<正> We collected infection plants of rice bakanae desiease from 22 counties (cities) in Hubei Province in 1990-1992. Thirty five isolates of single spore were
<正> In recent years,it has been demonstrated that thelow-level jet streams(LLJs)developed in thesouth of the Meiyu(Baiu)front play a critical role inthe overse