BACTERIAL ANTAGONISTS AS A BIOLOGICAL CONTROL AGAINST Xanthomonas oryzae pv. oryzae IN BLACK RICE VARIETY

The study was conducted in the Nursery Net-house at the College of Agriculture, Mindanao State University, Barangay Fatima, General Santos City. In an attempt to determine the efficacy of five antagonistic bacterial isolates as biological control against Xanthomonas oryzae pv. oryzae, as well as their relative effect on black rice variety. Following a Randomized Complete Block Design (RCBD) with six treatments replicated three times while using five bacterial isolates (T1- Control, T2 - ALE25, T3 - MDE06, T4-KBO4, T5-KAT12, KBE25).
The study revealed that the disease progressed was relatively slow based on descriptive statistics. However, results showed that disease progress was relatively faster for treatment 2 and was relatively slower for treatment 6. And all other treatments had slower disease progression than control.
The results shows that the effect of the bacterial isolates could not significantly control Xanthomonas oryzae pv. oryzae in black rice in this experiment. It appears possible that the effect of the antagonistic bacterial isolates where not demonstrated as desired.