Development of Sustainable Releasing Micro Formulation System using γ-Irradiation Technique to Control Phytophthora Blight Disease
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초록
We introduced a novel sustainable slow-releasing agrochemical formulation, a biopolymerbound to silica, for controlling plant diseases. The formulation was obtained through the followingprocess. Curdlan, sodium silicate (Na2SiO3) and isopropyl alcohol were dissolved in DDW(Deionized-distilled water). The resultant solution was then irradiated using a 60Co γ-irradiator(150 TBq of capacity; ACEL, Canada) at KAERI. The resultant solution was treated with phosphorousacid (H3PO3). Finally, we obtained a novel biopolymer-silica microsized formulation containingphosphorous acid (H3PO3) from the solution. The morphology of the complex was characterizedusing scanning electron microscopy (SEM) and transmission electron microscopy (TEM). SEM and TEM images revealed that the curdlan-silica formulation has a particle size rangingfrom 1 to 3 μm with high stability. We also detected that H3PO3 was distributed within the formulationthrough energy dispersive X-ray spectroscopy (EDX) analysis. H3PO3 was sustain-releasedfrom the formulation in water. Based on our results, it seems effectively that one or two applicationsof the formulation during a cropping season will assist in controlling various plant diseases.
Abstract
We introduced a novel sustainable slow-releasing agrochemical formulation, a biopolymerbound to silica, for controlling plant diseases. The formulation was obtained through the followingprocess. Curdlan, sodium silicate (Na2SiO3) and isopropyl alcohol were dissolved in DDW(Deionized-distilled water). The resultant solution was then irradiated using a 60Co γ-irradiator(150 TBq of capacity; ACEL, Canada) at KAERI. The resultant solution was treated with phosphorousacid (H3PO3). Finally, we obtained a novel biopolymer-silica microsized formulation containingphosphorous acid (H3PO3) from the solution. The morphology of the complex was characterizedusing scanning electron microscopy (SEM) and transmission electron microscopy (TEM). SEM and TEM images revealed that the curdlan-silica formulation has a particle size rangingfrom 1 to 3 μm with high stability. We also detected that H3PO3 was distributed within the formulationthrough energy dispersive X-ray spectroscopy (EDX) analysis. H3PO3 was sustain-releasedfrom the formulation in water. Based on our results, it seems effectively that one or two applicationsof the formulation during a cropping season will assist in controlling various plant diseases.
참고문헌 (18)
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