| Rice disease surveys had been carried out in the field of highland terrace paddy cultivation at ban na-gean, tambon na-gean, amphoe om-goy, Chiang Mai province which is in the area of highland agricultural development station project. Disease surveys have shown rice seed discoloration was the most severity and important problem in this area. The objective of this study was to test the effectiveness of antagonistic bacteria and some plant extract from tea seed to control rice seed discoloration in highland area. The experiment was designed as RCB with 6 treatments and 4 replications, using Beu Pa Doo rice variety and transplanting method in wet season 2008 and 2009. The treatments were foliar spray with bacterial suspension of antagonistic bacteria Bacillus... |
