Effects of Soil Texture on Germanium Uptake and Growth in Rice Plant by Soil Application with Germanium
2008
Lim, J.S. (Gyeongsang National University, Jinju, Republic of Korea) | Seo, D.C. (Louisiana State University, Baton Rouge, Louisiana, LA, USA) | Park, W.Y. (Gyeongsang National University, Jinju, Republic of Korea) | Cheon, Y.S. (Gyeongsang National University, Jinju, Republic of Korea) | Lee, S.T. (Gyeongsangnam-do Agricultural Research and Extension Services, Jinju, Republic of Korea) | Cho, J.S. (Sunchon National University, Sunchon, Republic of Korea), E-mail: [email protected] | Heo, J.S. (Gyeongsang National University, Jinju, Republic of Korea), E-mail: [email protected]
The growth characteristics and the Germanium (Ge) uptake of rice plant (Hopyungbyeo) in soil with Ge were investigated under different soil textures to obtain the basic information for agricultural utilization of Ge. This study was carried out in the Wagner pot (1 5,000-¹a). Ge concentration in soils such as clay loam, silt loam, loam and sandy loam for rice plant cultivation was treated at 8 mg kg-¹. The growth status of rice plant was almost similar in all soil texture, and rice yield was higher in the order of silt loam greater than clay loam greater than loam greater than sandy loam. In rice bran, the Ge uptakes in silt loam, clay loam, loam and sandy loam were 980, 868, 754 and 803 ㎍ pot-¹, respectively. The Ge uptakes of brown rice and polish rice were greater in the order of silt loam greater than sandy loam greater than clay loam greater than loam. In silt loam, the Ge uptake rates in leaf, stem, root, rice bran and brown rice were 19.7, 2.3, 0.03, 3.1 and 0.44%, respectively. Therefore, under the given experimental condition the optimum soil texture for production of functional rice with Ge is a silt loam.
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