Test Of Several Isolate Bacillus Sp Riau Origins And Variety of paddy (oryza sativa l.) Against bacteria xanthomonas oryzae pv. Oryzae Cause Bacterial Leaf Blight

Abstract

Xanthomonas oryzae pv oryzae is one of the bacteria causing-disease that can reduce rice production by 30%. To overcome this problem eco-friendly alternative to control by using biological agents such as Bacillus sp. The purpose of this research is to investigate the interaction between several isolates of Bacillus sp Riau origin. The research was conducted in a completely randomized design (CRD) experiment with factorial with 3 replications. The results showed that the interaction of Bacillus sp. origin and varieties of rice rhizosphere significantly affect the time symptoms appear early, and grain weight per plant. Combination of Bacillus sp. origin and varieties of rice rhizosphere Mira 1 provide initial symptoms appear slower, while a combination of Bacillus sp. origin of rice rhizosphere and Ciherang heavy grain yield per plant is better than the other treatments.