Sorghum is a food plant rich in benefits and has the advantage of being free gluten; it contains antioxidants and has a low glycemic index. The purpose of this research is to determine the content of compounds in sorghum. In the research, the variety of KD 4 sorghum has been used, which was macerated by absolute methanol. Results screening using thin-layer chromatography showed that methanol extract of sorghum contained flavonoid, phenol, triterpenoid, tannin, and saponin compounds, and finally, these compounds will be useful for pharmaceutical products.
An experiment was conducted under field condition in Wonogiri, Central Java in 2018 to evaluate the effectiveness of biological control agents against xylem limited bacterium disease and its insect vector (Hindola striata). The experiment was arranged in a completely randomized block design with 12 treatments and 4 replicates. Treatments used were (1) fipronil, (2) Beauveria bassiana, (3) bioprotector, (4) oxytetracycline, (5) Bacillus sp. - Pseudomonas, (6) oxytetracycline + fipronil, (7) oxytetracycline + bioprotector, (8) oxytetracycline + B. bassiana), (9) Bacillus sp. - Pseudomonas + fipronil, (10) Bacillus sp. - Pseudomonas + bioprotector), (11) Bacillus sp. - Pseudomonas + B. bassiana, and (12) control (water). Infected clove plants were treated twice with monthly application interval. Variables observed were the population of H. striata, percentage of plant damage, and the plant shoots growth. Treatments of oxytetracycline, fipronil, oxytetracycline + fipronil, Bacillus sp.-Pseudomonas, oxytetracycline + B. bassiana, and Bacillus sp. - Pseudomonas + B. bassiana could reduce 100% population of H. striata. Treatments of Bacillus sp. - Pseudomonas + B. bassiana could inhibit the plant damage percentage up to 91.94%. While, treatments of Bacillus sp. - Pseudomonas + B. bassiana, Bacillus sp. - Pseudomonas + fipronil, and oxytetracycline + fipronil stimulated the plant shoots growth.
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