Nano-particles from Cheatomium brasiliense against brown spot of rice

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Published: Dec 15, 2018
Keywords:
Chaetomium brasiliense biological control rice disease

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Vareeket, R.
Department of Plant Production Technology, Faculty of agricultural Technology, King Mongkut’s Institute of Technology Ladkrabang, Bangkok 10520, Thailand.
Soytong, K.
Department of Plant Production Technology, Faculty of agricultural Technology, King Mongkut’s Institute of Technology Ladkrabang, Bangkok 10520, Thailand.
Kanokmedhakul, S.
Department of Chemistry and Center for Innovation in Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand.
Kanokmedhakul, K.
Department of Chemistry and Center for Innovation in Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand.

Abstract

Chaetomium brasiliense was used in this study to control rice brown spot disease pathogen, Drechslera oryzae. The result of bi-culture test showed that Ch. brasiliense gave the hightest percentage of growth inhibition at 26.38% and had the highest spore inhibition at 23.81%. In crude extracts test, it was found that crude methanol extract obtained from Ch. brasiliense at 1000 ppm showed the highest inhibitory effect on colony growth and spore production. Ch. brasiliense gave a growth inhibition and spore inhibition rates at 83.50 and 99.78% respectively. The effective dose (ED50) on growth and spore inhibition of Ch. brasiliense was 80.54 and 0.35 µg/ml, respectively. It was also found that Nano-particles obtained from crude methanol extract of Ch. brasiliense (nano CBM) at 10 ppm had the best inhibitory effect in terms of growth and spore inhibition. Nano CBM can inhibit the growth at 70.00% and spore production at 79.92%. The ED50 values for spore inhibition of Ch. brasiliense was 2.86 µg/ml.

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How to Cite
Vareeket, R., Soytong, K., Kanokmedhakul, S., & Kanokmedhakul, K. (2018). Nano-particles from Cheatomium brasiliense against brown spot of rice. International Journal of Agricultural Technology, 14(7), 2207–2214. retrieved from https://li04.tci-thaijo.org/index.php/IJAT/article/view/10347
Issue
Vol. 14 No. 7 (2018): December
Section
Original Study
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