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http://dx.doi.org/10.7745/KJSSF.2011.44.5.767

Analysis of Fe-Deficient Inducing Enzyme and Required Time for Recovery of Nutritional Disorder by Fe-DTPA Treatment in the Fe-Deficient Induced Tomato Cultivars  

Lee, Seong-Tae (Gyeongsangnamdo Agricultural Research and Extension Services)
Kim, Min-Keun (Gyeongsangnamdo Agricultural Research and Extension Services)
Lee, Young-Han (Gyeongsangnamdo Agricultural Research and Extension Services)
Kim, Young-Shik (Department of Plant Science and Technology, Sangmyung Univ.)
Kim, Yeong-Bong (Gyeongsangnamdo Agricultural Research and Extension Services)
Publication Information
Korean Journal of Soil Science and Fertilizer / v.44, no.5, 2011 , pp. 767-772 More about this Journal
Abstract
The purpose of this study was to find out required time for recovery of nutritional disorder by Fe-DTPA treatment in induced Fe-deficient tomato cultivars and to select stable Fe-chelate in high pH of nutrient solution. The pH levels of nutrient solution were amended with 6.0, 7.0, and 8.0. Then Fe-EDTA (Ethylenediaminetetraacetic acid, ferric-sodium salt), Fe-DTPA (Sodium ferric diethylenetriamine pentaacetate), and Fe-EDDHA (Ethylenediamine-N,N-bis (2-hydroxyphenylacetic acid) ferric-sodium salt)) were treated as Fe $2.0mg\;L^{-1}$ concentration. The Fe-DTPA and Fe-EDDHA were stable in the nutrient solution of pH 6.0~8.0 but Fe-EDTA in nutrient solution of pH 8.0 was to become insoluble by 25%. The Fe $2.0mg\;L^{-1}$ as Fe-DTPA was treated for recovery of Fe deficient tomato seedlings. In case of Redyoyo and Supersunroad cultivars, total chlorophyll and Fe contents of leaves were recovered as much as those of normal leaves in 5 days. The Rafito cultivar for complete recovery was taken 7 days. When Fe $2.0mg\;L^{-1}$ as Fe-DTPA was supplied to Fe-deficient tomato seedlings, in geotype, heme oxigenase recovered as much as normal leaves in 24 hours in the Rafito and Redyoyo. However, it was not remarkable difference by elapsed time in the Supersunroad.
Keywords
Tomato; Fe deficient; Fe-DTPA; Chlorophyll content; Nutritional disorder;
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