Effectiveness of FeEDDHA, FeEDDHMA, and FeHBED in Preventing Iron-Deficiency Chlorosis in Soybean.
The performance of FeHBED in preventing Fe deficiency chlorosis in soybean (Glycine max (L.) Merr.) in comparison to FeEDDHA and FeEDDHMA was studied, as well as the importance of the ortho-ortho and ortho-para/rest isomers in defining the performance. To this end, chlorophyll production (SPAD), plant dry matter yield, and the mass fractions of important mineral elements in the plant were quantified in a greenhouse pot experiment. All three Fe chelates increased SPAD index and dry matter yield compared to the control. The effect of FeHBED on chlorophyll production was visible over a longer time span than that of FeEDDHA and FeEDDHMA. Additionally, FeHBED did not suppress Mn uptake as much as the other Fe chelates. Compared to the other Fe chelates, total Fe content in the young leaves was lower in the FeHBED treatment; however, total Fe content was not directly related to chlorophyll production and biomass yield. For each chelate, the ortho-ortho isomer was found to be more effective than the other isomers evaluated.
Department of Soil Quality, Wageningen University , P.O. Box 47, 6700 AA Wageningen, The Netherlands.
Levi M
LM
Bin
Department of Soil Quality, Wageningen University , P.O. Box 47, 6700 AA Wageningen, The Netherlands.
Liping
L
Weng
Department of Micronutrients, Akzo Nobel Functional Chemicals , P.O. Box 75730, 1070 AS Amsterdam, The Netherlands.
Marcel H J
MH
Bugter
D002734:Chlorophyll / Q000378:metabolism; D004492:Edetic Acid / Q000031:analogs & derivatives / Q000737:chemistry / Q000494:pharmacology; D005029:Ethylenediamines / Q000737:chemistry / Q000494:pharmacology; D005308:Fertilizers; D007501:Iron / Q000378:metabolism*; D007502:Iron Chelating Agents / Q000737:chemistry / Q000494:pharmacology*; D008345:Manganese / Q000378:metabolism; D010935:Plant Diseases / Q000517:prevention & control*; D012987:Soil / Q000737:chemistry; D013025:Glycine max / Q000187:drug effects / Q000254:growth & development / Q000378:metabolism*; D013030:Spain
D005029:Ethylenediamines; D005308:Fertilizers; D007502:Iron Chelating Agents; D012987:Soil; C443343:ethylenediaminedi-(o-hydroxy-p-methylphenylacetic)acid; C011813:ethylenediamine-N,N'-bis(2-hydroxyphenylacetic acid); D002734:Chlorophyll; C037740:N,N'-bis(2-hydroxybenzyl)ethylenediamine-N,N'-diacetic acid; D008345:Manganese; D004492:Edetic Acid; D007501:Iron
EDDHA; EDDHMA; Glycine max (L.) Merr.; HBED; iron chelates; iron deficiency chlorosis