Observational analysis shows high clustering of bacterial leaf blight in rice crops, suggesting environmental influences.
Rice (Oryza sativa) is the main food source in Indonesia. The demand for rice continues to increase with population growth. In 2019, rice production in East Java decreased by 5.50 million tons. The rice production did not meet the national food demand, one of the obstacles to the cultivation of rice is the presence of bacterial blight caused by Xanthomonas oryzae. Bacterial leaf blight is an important disease because it can cause severe damage and can infect the vegetative and generative phases of rice plants. This study was conducted to determine the influence of abiotic environmental factors and distribution patterns of bacterial leaf blight disease through geostatistical approach with variogram and kriging on rice fields with symptoms of bacterial leaf blight disease in Sadang Village, Taman, Sidoarjo. The results of the study for six weeks showed that the distribution of leaf blight bacterial diseases at the study site tended to be high clustered in the north-south direction compared to the east-west direction. The values of the incidence rate at the end of the observation ranged from 20-68% with a pH of about 6-6.9.
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Izza et al. (2023) studied this question.
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